From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../libwebrtc/rtc_tools/network_tester/BUILD.gn    | 184 +++++++++++++++++++++
 .../libwebrtc/rtc_tools/network_tester/README      |  35 ++++
 .../network_tester/androidapp/AndroidManifest.xml  |  24 +++
 .../androidapp/res/layout/activity_main.xml        |  28 ++++
 .../androidapp/res/mipmap-hdpi/ic_launcher.png     | Bin 0 -> 3418 bytes
 .../androidapp/res/mipmap-mdpi/ic_launcher.png     | Bin 0 -> 2206 bytes
 .../androidapp/res/mipmap-xhdpi/ic_launcher.png    | Bin 0 -> 4842 bytes
 .../androidapp/res/mipmap-xxhdpi/ic_launcher.png   | Bin 0 -> 7718 bytes
 .../androidapp/res/mipmap-xxxhdpi/ic_launcher.png  | Bin 0 -> 10486 bytes
 .../androidapp/res/values-v17/styles.xml           |   8 +
 .../androidapp/res/values-w820dp/dimens.xml        |   6 +
 .../androidapp/res/values/colors.xml               |   6 +
 .../androidapp/res/values/dimens.xml               |   5 +
 .../androidapp/res/values/strings.xml              |   6 +
 .../google/media/networktester/MainActivity.java   |  62 +++++++
 .../google/media/networktester/NetworkTester.java  |  32 ++++
 .../rtc_tools/network_tester/config_reader.cc      |  54 ++++++
 .../rtc_tools/network_tester/config_reader.h       |  53 ++++++
 .../network_tester/create_network_tester_config.py |  30 ++++
 .../libwebrtc/rtc_tools/network_tester/jni.cc      |  68 ++++++++
 .../network_tester/network_tester_config.proto     |  14 ++
 .../network_tester/network_tester_packet.proto     |  18 ++
 .../network_tester/network_tester_unittest.cc      |  37 +++++
 .../rtc_tools/network_tester/packet_logger.cc      |  44 +++++
 .../rtc_tools/network_tester/packet_logger.h       |  46 ++++++
 .../rtc_tools/network_tester/packet_sender.cc      | 133 +++++++++++++++
 .../rtc_tools/network_tester/packet_sender.h       |  71 ++++++++
 .../rtc_tools/network_tester/parse_packet_log.py   | 150 +++++++++++++++++
 .../libwebrtc/rtc_tools/network_tester/server.cc   |  23 +++
 .../rtc_tools/network_tester/test_controller.cc    | 158 ++++++++++++++++++
 .../rtc_tools/network_tester/test_controller.h     |  95 +++++++++++
 31 files changed, 1390 insertions(+)
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/BUILD.gn
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/README
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/AndroidManifest.xml
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/layout/activity_main.xml
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-hdpi/ic_launcher.png
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-mdpi/ic_launcher.png
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xhdpi/ic_launcher.png
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxhdpi/ic_launcher.png
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxxhdpi/ic_launcher.png
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-v17/styles.xml
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-w820dp/dimens.xml
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/colors.xml
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/dimens.xml
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/strings.xml
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/MainActivity.java
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/NetworkTester.java
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/config_reader.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/config_reader.h
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/create_network_tester_config.py
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/jni.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/network_tester_config.proto
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/network_tester_packet.proto
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/network_tester_unittest.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/packet_logger.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/packet_logger.h
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/packet_sender.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/packet_sender.h
 create mode 100755 third_party/libwebrtc/rtc_tools/network_tester/parse_packet_log.py
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/server.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/test_controller.cc
 create mode 100644 third_party/libwebrtc/rtc_tools/network_tester/test_controller.h

(limited to 'third_party/libwebrtc/rtc_tools/network_tester')

diff --git a/third_party/libwebrtc/rtc_tools/network_tester/BUILD.gn b/third_party/libwebrtc/rtc_tools/network_tester/BUILD.gn
new file mode 100644
index 0000000000..e33a3c000f
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/BUILD.gn
@@ -0,0 +1,184 @@
+# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+import("../../webrtc.gni")
+if (rtc_enable_protobuf) {
+  import("//third_party/protobuf/proto_library.gni")
+}
+
+if (rtc_enable_protobuf) {
+  proto_library("network_tester_config_proto") {
+    sources = [ "network_tester_config.proto" ]
+    proto_out_dir = "rtc_tools/network_tester"
+  }
+
+  proto_library("network_tester_packet_proto") {
+    sources = [ "network_tester_packet.proto" ]
+    proto_out_dir = "rtc_tools/network_tester"
+  }
+
+  rtc_library("network_tester") {
+    sources = [
+      "config_reader.cc",
+      "config_reader.h",
+      "packet_logger.cc",
+      "packet_logger.h",
+      "packet_sender.cc",
+      "packet_sender.h",
+      "test_controller.cc",
+      "test_controller.h",
+    ]
+
+    defines = [ "WEBRTC_NETWORK_TESTER_PROTO" ]
+
+    deps = [
+      ":network_tester_config_proto",
+      ":network_tester_packet_proto",
+      "../../api:sequence_checker",
+      "../../api/task_queue",
+      "../../api/task_queue:default_task_queue_factory",
+      "../../api/task_queue:pending_task_safety_flag",
+      "../../p2p:rtc_p2p",
+      "../../rtc_base:async_packet_socket",
+      "../../rtc_base:checks",
+      "../../rtc_base:ignore_wundef",
+      "../../rtc_base:ip_address",
+      "../../rtc_base:logging",
+      "../../rtc_base:macromagic",
+      "../../rtc_base:protobuf_utils",
+      "../../rtc_base:rtc_task_queue",
+      "../../rtc_base:socket_address",
+      "../../rtc_base:threading",
+      "../../rtc_base:timeutils",
+      "../../rtc_base/synchronization:mutex",
+      "../../rtc_base/system:no_unique_address",
+      "../../rtc_base/third_party/sigslot",
+    ]
+    absl_deps = [
+      "//third_party/abseil-cpp/absl/functional:any_invocable",
+      "//third_party/abseil-cpp/absl/types:optional",
+    ]
+  }
+
+  network_tester_unittests_resources = [
+    "../../resources/network_tester/client_config.dat",
+    "../../resources/network_tester/server_config.dat",
+  ]
+
+  if (is_ios) {
+    bundle_data("network_tester_unittests_bundle_data") {
+      testonly = true
+      sources = network_tester_unittests_resources
+      outputs = [ "{{bundle_resources_dir}}/{{source_file_part}}" ]
+    }
+  }
+
+  rtc_library("network_tester_unittests") {
+    testonly = true
+
+    sources = [ "network_tester_unittest.cc" ]
+
+    deps = [
+      ":network_tester",
+      "../../rtc_base:gunit_helpers",
+      "../../rtc_base:threading",
+      "../../test:fileutils",
+      "../../test:test_support",
+      "//testing/gtest",
+    ]
+
+    if (is_ios) {
+      deps += [ ":network_tester_unittests_bundle_data" ]
+    }
+
+    defines = [ "WEBRTC_NETWORK_TESTER_TEST_ENABLED" ]
+
+    data = network_tester_unittests_resources
+  }
+
+  rtc_executable("network_tester_server") {
+    sources = [ "server.cc" ]
+
+    deps = [
+      ":network_tester",
+      "../../rtc_base:null_socket_server",
+      "../../rtc_base:threading",
+    ]
+  }
+}
+
+if (is_android) {
+  rtc_android_apk("NetworkTesterMobile") {
+    testonly = true
+    apk_name = "NetworkTesterMobile"
+    android_manifest = "androidapp/AndroidManifest.xml"
+    min_sdk_version = 21
+    target_sdk_version = 24
+
+    deps = [
+      ":NetworkTesterMobile_javalib",
+      ":NetworkTesterMobile_resources",
+      "../../rtc_base:base_java",
+    ]
+
+    shared_libraries = [ "../../rtc_tools/network_tester:network_tester_so" ]
+  }
+
+  rtc_android_library("NetworkTesterMobile_javalib") {
+    testonly = true
+    android_manifest = "androidapp/AndroidManifest.xml"
+
+    sources = [
+      "androidapp/src/com/google/media/networktester/MainActivity.java",
+      "androidapp/src/com/google/media/networktester/NetworkTester.java",
+    ]
+
+    resources_package = "com.google.media.networktester"
+    deps = [
+      ":NetworkTesterMobile_resources",
+      "../../rtc_base:base_java",
+    ]
+  }
+
+  android_resources("NetworkTesterMobile_resources") {
+    testonly = true
+    custom_package = "com.google.media.networktester"
+    sources = [
+      "androidapp/res/layout/activity_main.xml",
+      "androidapp/res/mipmap-hdpi/ic_launcher.png",
+      "androidapp/res/mipmap-mdpi/ic_launcher.png",
+      "androidapp/res/mipmap-xhdpi/ic_launcher.png",
+      "androidapp/res/mipmap-xxhdpi/ic_launcher.png",
+      "androidapp/res/mipmap-xxxhdpi/ic_launcher.png",
+      "androidapp/res/values-v17/styles.xml",
+      "androidapp/res/values-w820dp/dimens.xml",
+      "androidapp/res/values/colors.xml",
+      "androidapp/res/values/dimens.xml",
+      "androidapp/res/values/strings.xml",
+    ]
+
+    # Needed for Bazel converter.
+    resource_dirs = [ "androidapp/res" ]
+    assert(resource_dirs != [])  # Mark as used.
+  }
+
+  rtc_shared_library("network_tester_so") {
+    sources = [ "jni.cc" ]
+
+    deps = [
+      ":network_tester",
+      "../../rtc_base:logging",
+      "../../rtc_base:threading",
+    ]
+
+    suppressed_configs += [ "//build/config/android:hide_all_but_jni_onload" ]
+    configs += [ "//build/config/android:hide_all_but_jni" ]
+
+    output_extension = "so"
+  }
+}
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/README b/third_party/libwebrtc/rtc_tools/network_tester/README
new file mode 100644
index 0000000000..6680212e81
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/README
@@ -0,0 +1,35 @@
+This file explains how to run the network tester and how to analyze the results.
+
+create config files
+===================
+use create_network_tester_config.py  to create config files.
+you can add or change the AddConfig call in the main function to create a
+the desired network config.
+
+run network_tester_server
+=========================
+place the network config file next to the server binary and name it
+"server_config.dat".
+
+the network_tester_server should run on a server with a public IP address.
+
+the log file of network_tester_server will be created next to the binary with
+the name "server_packet_log.dat"
+
+
+run NetworkTesterMobile (apk)
+=============================
+change the IP and the port in the jni.cpp file and set it to the port and IP
+you run the network_tester_server on.
+
+place the network config file as "/mnt/sdcard/network_tester_client_config.dat"
+on the tester android phone.
+
+The log file of network_tester_server will be created at
+"/mnt/sdcard/network_tester_client_packet_log.dat"
+
+
+analyze the results
+====================
+run "python parse_packet_log.py -f <log_file_to_parse>" to analyze the
+log results.
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/AndroidManifest.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/AndroidManifest.xml
new file mode 100755
index 0000000000..1ff519396b
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.media.networktester" >
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-sdk android:minSdkVersion="21"
+    android:targetSdkVersion="24"
+    android:maxSdkVersion="24" />
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme" >
+        <activity android:name=".MainActivity" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/layout/activity_main.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/layout/activity_main.xml
new file mode 100755
index 0000000000..8839a31003
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/layout/activity_main.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingStart="@dimen/activity_horizontal_margin"
+    android:paddingEnd="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    tools:context="com.google.media.networktester.MainActivity">
+    <Button
+      android:text="@string/start_test"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_alignParentTop="true"
+      android:layout_alignParentStart="true"
+      android:id="@+id/start_button"/>
+    <Button
+      android:text="@string/interrupt_test"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_alignParentTop="true"
+      android:layout_toEndOf="@+id/start_button"
+      android:id="@+id/stop_button"/>
+
+</RelativeLayout>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-hdpi/ic_launcher.png b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000000..cde69bccce
Binary files /dev/null and b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-mdpi/ic_launcher.png b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000000..c133a0cbd3
Binary files /dev/null and b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xhdpi/ic_launcher.png b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000000..bfa42f0e7b
Binary files /dev/null and b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxhdpi/ic_launcher.png b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000000..324e72cdd7
Binary files /dev/null and b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxxhdpi/ic_launcher.png b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000000..aee44e1384
Binary files /dev/null and b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-v17/styles.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-v17/styles.xml
new file mode 100755
index 0000000000..ff6c9d2c0f
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-v17/styles.xml
@@ -0,0 +1,8 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+
+</resources>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-w820dp/dimens.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-w820dp/dimens.xml
new file mode 100755
index 0000000000..63fc816444
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values-w820dp/dimens.xml
@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/colors.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/colors.xml
new file mode 100755
index 0000000000..3ab3e9cbce
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/dimens.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/dimens.xml
new file mode 100755
index 0000000000..47c8224673
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/dimens.xml
@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/strings.xml b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/strings.xml
new file mode 100755
index 0000000000..273276d43e
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/res/values/strings.xml
@@ -0,0 +1,6 @@
+<resources>
+    <string name="app_name">NetworkTester</string>
+    <string name="start_test">Start test</string>
+    <string name="interrupt_test">Interrupt test</string>
+    <string name="test_status">Status</string>
+</resources>
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/MainActivity.java b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/MainActivity.java
new file mode 100644
index 0000000000..33f442fce2
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/MainActivity.java
@@ -0,0 +1,62 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package com.google.media.networktester;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.WindowManager;
+import android.widget.Button;
+
+public class MainActivity extends Activity {
+  Button startButton;
+  Button stopButton;
+  NetworkTester networkTester;
+  Handler mainThreadHandler;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_main);
+    startButton = (Button) findViewById(R.id.start_button);
+    startButton.setOnClickListener(new OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        startTest();
+      }
+    });
+    stopButton = (Button) findViewById(R.id.stop_button);
+    stopButton.setOnClickListener(new OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        stopTest();
+      }
+    });
+    mainThreadHandler = new Handler();
+    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+  }
+
+  private void startTest() {
+    if (networkTester == null) {
+      networkTester = new NetworkTester();
+      networkTester.start();
+    }
+  }
+
+  private void stopTest() {
+    if (networkTester != null) {
+      networkTester.interrupt();
+      networkTester = null;
+    }
+  }
+}
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/NetworkTester.java b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/NetworkTester.java
new file mode 100644
index 0000000000..7c08f873bb
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/androidapp/src/com/google/media/networktester/NetworkTester.java
@@ -0,0 +1,32 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package com.google.media.networktester;
+
+public class NetworkTester extends Thread {
+  private native static long CreateTestController();
+  private native static void TestControllerConnect(long testController);
+  private native static void TestControllerRun(long testController);
+  private native static boolean TestControllerIsDone(long testController);
+  private native static void DestroyTestController(long testController);
+  static {
+    System.loadLibrary("network_tester_so");
+  }
+
+  @Override
+  public void run() {
+    final long testController = CreateTestController();
+    TestControllerConnect(testController);
+    while (!Thread.interrupted() && !TestControllerIsDone(testController)) {
+      TestControllerRun(testController);
+    }
+    DestroyTestController(testController);
+  }
+}
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/config_reader.cc b/third_party/libwebrtc/rtc_tools/network_tester/config_reader.cc
new file mode 100644
index 0000000000..16ae458d50
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/config_reader.cc
@@ -0,0 +1,54 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "rtc_tools/network_tester/config_reader.h"
+
+#include <fstream>
+#include <iterator>
+#include <string>
+
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+ConfigReader::ConfigReader(const std::string& config_file_path)
+    : proto_config_index_(0) {
+  std::ifstream config_stream(config_file_path,
+                              std::ios_base::in | std::ios_base::binary);
+  RTC_DCHECK(config_stream.is_open())
+      << "Config " << config_file_path << " open failed";
+  RTC_DCHECK(config_stream.good());
+  std::string config_data((std::istreambuf_iterator<char>(config_stream)),
+                          (std::istreambuf_iterator<char>()));
+  if (config_data.size() > 0) {
+    proto_all_configs_.ParseFromString(config_data);
+  }
+}
+
+ConfigReader::~ConfigReader() = default;
+
+absl::optional<ConfigReader::Config> ConfigReader::GetNextConfig() {
+#ifdef WEBRTC_NETWORK_TESTER_PROTO
+  if (proto_config_index_ >= proto_all_configs_.configs_size())
+    return absl::nullopt;
+  auto proto_config = proto_all_configs_.configs(proto_config_index_++);
+  RTC_DCHECK(proto_config.has_packet_send_interval_ms());
+  RTC_DCHECK(proto_config.has_packet_size());
+  RTC_DCHECK(proto_config.has_execution_time_ms());
+  Config config;
+  config.packet_send_interval_ms = proto_config.packet_send_interval_ms();
+  config.packet_size = proto_config.packet_size();
+  config.execution_time_ms = proto_config.execution_time_ms();
+  return config;
+#else
+  return absl::nullopt;
+#endif  //  WEBRTC_NETWORK_TESTER_PROTO
+}
+
+}  // namespace webrtc
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/config_reader.h b/third_party/libwebrtc/rtc_tools/network_tester/config_reader.h
new file mode 100644
index 0000000000..3735555d51
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/config_reader.h
@@ -0,0 +1,53 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_TOOLS_NETWORK_TESTER_CONFIG_READER_H_
+#define RTC_TOOLS_NETWORK_TESTER_CONFIG_READER_H_
+
+#include <fstream>
+#include <string>
+
+#include "absl/types/optional.h"
+#include "rtc_base/ignore_wundef.h"
+
+#ifdef WEBRTC_NETWORK_TESTER_PROTO
+RTC_PUSH_IGNORING_WUNDEF()
+#include "rtc_tools/network_tester/network_tester_config.pb.h"
+RTC_POP_IGNORING_WUNDEF()
+using webrtc::network_tester::config::NetworkTesterAllConfigs;
+#else
+class NetworkTesterConfigs;
+#endif  // WEBRTC_NETWORK_TESTER_PROTO
+
+namespace webrtc {
+
+class ConfigReader {
+ public:
+  struct Config {
+    int packet_send_interval_ms;
+    int packet_size;
+    int execution_time_ms;
+  };
+  explicit ConfigReader(const std::string& config_file_path);
+  ~ConfigReader();
+
+  ConfigReader(const ConfigReader&) = delete;
+  ConfigReader& operator=(const ConfigReader&) = delete;
+
+  absl::optional<Config> GetNextConfig();
+
+ private:
+  NetworkTesterAllConfigs proto_all_configs_;
+  int proto_config_index_;
+};
+
+}  // namespace webrtc
+
+#endif  // RTC_TOOLS_NETWORK_TESTER_CONFIG_READER_H_
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/create_network_tester_config.py b/third_party/libwebrtc/rtc_tools/network_tester/create_network_tester_config.py
new file mode 100644
index 0000000000..de8d058f9d
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/create_network_tester_config.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+import network_tester_config_pb2
+
+
+def AddConfig(all_configs, packet_send_interval_ms, packet_size,
+              execution_time_ms):
+    config = all_configs.configs.add()
+    config.packet_send_interval_ms = packet_send_interval_ms
+    config.packet_size = packet_size
+    config.execution_time_ms = execution_time_ms
+
+
+def main():
+    all_configs = network_tester_config_pb2.NetworkTesterAllConfigs()
+    AddConfig(all_configs, 10, 50, 200)
+    AddConfig(all_configs, 10, 100, 200)
+    with open("network_tester_config.dat", 'wb') as f:
+        f.write(all_configs.SerializeToString())
+
+
+if __name__ == "__main__":
+    main()
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/jni.cc b/third_party/libwebrtc/rtc_tools/network_tester/jni.cc
new file mode 100644
index 0000000000..f192739ad0
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/jni.cc
@@ -0,0 +1,68 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <jni.h>
+#undef JNIEXPORT
+#define JNIEXPORT __attribute__((visibility("default")))
+#include <string>
+
+#include "rtc_base/logging.h"
+#include "rtc_base/thread.h"
+#include "rtc_tools/network_tester/test_controller.h"
+
+extern "C" JNIEXPORT jlong JNICALL
+Java_com_google_media_networktester_NetworkTester_CreateTestController(
+    JNIEnv* jni,
+    jclass) {
+  rtc::ThreadManager::Instance()->WrapCurrentThread();
+  return reinterpret_cast<intptr_t>(new webrtc::TestController(
+      0, 0, "/mnt/sdcard/network_tester_client_config.dat",
+      "/mnt/sdcard/network_tester_client_packet_log.dat"));
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_media_networktester_NetworkTester_TestControllerConnect(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  reinterpret_cast<webrtc::TestController*>(native_pointer)
+      ->SendConnectTo("85.195.237.107", 9090);
+}
+
+extern "C" JNIEXPORT bool JNICALL
+Java_com_google_media_networktester_NetworkTester_TestControllerIsDone(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  return reinterpret_cast<webrtc::TestController*>(native_pointer)
+      ->IsTestDone();
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_media_networktester_NetworkTester_TestControllerRun(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  // 100 ms arbitrary chosen, but it works well.
+  rtc::Thread::Current()->ProcessMessages(/*cms=*/100);
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_media_networktester_NetworkTester_DestroyTestController(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  webrtc::TestController* test_controller =
+      reinterpret_cast<webrtc::TestController*>(native_pointer);
+  if (test_controller) {
+    delete test_controller;
+  }
+  rtc::ThreadManager::Instance()->UnwrapCurrentThread();
+}
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/network_tester_config.proto b/third_party/libwebrtc/rtc_tools/network_tester/network_tester_config.proto
new file mode 100644
index 0000000000..a911dc17ff
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/network_tester_config.proto
@@ -0,0 +1,14 @@
+syntax = "proto2";
+option optimize_for = LITE_RUNTIME;
+package webrtc.network_tester.config;
+
+message NetworkTesterConfig {
+  optional int32 packet_send_interval_ms = 1;
+  optional float packet_size = 2;
+  optional int32 execution_time_ms = 3;
+}
+
+message NetworkTesterAllConfigs {
+  repeated NetworkTesterConfig configs = 1;
+}
+
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/network_tester_packet.proto b/third_party/libwebrtc/rtc_tools/network_tester/network_tester_packet.proto
new file mode 100644
index 0000000000..c3bcec5ec7
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/network_tester_packet.proto
@@ -0,0 +1,18 @@
+syntax = "proto2";
+option optimize_for = LITE_RUNTIME;
+package webrtc.network_tester.packet;
+
+message NetworkTesterPacket {
+  enum Type {
+    HAND_SHAKING = 0;
+    TEST_START = 1;
+    TEST_DATA = 2;
+    TEST_DONE = 3;
+  }
+
+  optional Type type = 1;
+  optional int64 send_timestamp = 2;
+  optional int64 arrival_timestamp = 3;
+  optional int64 sequence_number = 4;
+  optional int32 packet_size = 5;
+}
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/network_tester_unittest.cc b/third_party/libwebrtc/rtc_tools/network_tester/network_tester_unittest.cc
new file mode 100644
index 0000000000..60b34e4e9f
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/network_tester_unittest.cc
@@ -0,0 +1,37 @@
+/*
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifdef WEBRTC_NETWORK_TESTER_TEST_ENABLED
+
+#include <string>
+
+#include "rtc_base/gunit.h"
+#include "rtc_tools/network_tester/test_controller.h"
+#include "test/gtest.h"
+#include "test/testsupport/file_utils.h"
+
+namespace webrtc {
+
+TEST(NetworkTesterTest, ServerClient) {
+  rtc::AutoThread main_thread;
+  TestController client(
+      0, 0, webrtc::test::ResourcePath("network_tester/client_config", "dat"),
+      webrtc::test::OutputPath() + "client_packet_log.dat");
+  TestController server(
+      9090, 9090,
+      webrtc::test::ResourcePath("network_tester/server_config", "dat"),
+      webrtc::test::OutputPath() + "server_packet_log.dat");
+  client.SendConnectTo("127.0.0.1", 9090);
+  EXPECT_TRUE_WAIT(server.IsTestDone() && client.IsTestDone(), 2000);
+}
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_NETWORK_TESTER_TEST_ENABLED
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/packet_logger.cc b/third_party/libwebrtc/rtc_tools/network_tester/packet_logger.cc
new file mode 100644
index 0000000000..eef8030981
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/packet_logger.cc
@@ -0,0 +1,44 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "rtc_tools/network_tester/packet_logger.h"
+
+#include <string>
+
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+PacketLogger::PacketLogger(const std::string& log_file_path)
+    : packet_logger_stream_(log_file_path,
+                            std::ios_base::out | std::ios_base::binary) {
+  RTC_DCHECK(packet_logger_stream_.is_open());
+  RTC_DCHECK(packet_logger_stream_.good());
+}
+
+PacketLogger::~PacketLogger() = default;
+
+void PacketLogger::LogPacket(const NetworkTesterPacket& packet) {
+  // The protobuffer message will be saved in the following format to the file:
+  // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+  // |      1 byte      |  X byte |      1 byte      | ... |  X byte |
+  // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+  // | Size of the next | proto   | Size of the next | ... | proto   |
+  // | proto message    | message | proto message    |     | message |
+  // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+  std::string packet_data;
+  packet.SerializeToString(&packet_data);
+  RTC_DCHECK_LE(packet_data.length(), 255);
+  RTC_DCHECK_GE(packet_data.length(), 0);
+  char proto_size = packet_data.length();
+  packet_logger_stream_.write(&proto_size, sizeof(proto_size));
+  packet_logger_stream_.write(packet_data.data(), packet_data.length());
+}
+
+}  // namespace webrtc
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/packet_logger.h b/third_party/libwebrtc/rtc_tools/network_tester/packet_logger.h
new file mode 100644
index 0000000000..c3ac309cf7
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/packet_logger.h
@@ -0,0 +1,46 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_TOOLS_NETWORK_TESTER_PACKET_LOGGER_H_
+#define RTC_TOOLS_NETWORK_TESTER_PACKET_LOGGER_H_
+
+#include <fstream>
+#include <string>
+
+#include "rtc_base/ignore_wundef.h"
+
+#ifdef WEBRTC_NETWORK_TESTER_PROTO
+RTC_PUSH_IGNORING_WUNDEF()
+#include "rtc_tools/network_tester/network_tester_packet.pb.h"
+RTC_POP_IGNORING_WUNDEF()
+using webrtc::network_tester::packet::NetworkTesterPacket;
+#else
+class NetworkTesterPacket;
+#endif  // WEBRTC_NETWORK_TESTER_PROTO
+
+namespace webrtc {
+
+class PacketLogger {
+ public:
+  explicit PacketLogger(const std::string& log_file_path);
+  ~PacketLogger();
+
+  PacketLogger(const PacketLogger&) = delete;
+  PacketLogger& operator=(const PacketLogger&) = delete;
+
+  void LogPacket(const NetworkTesterPacket& packet);
+
+ private:
+  std::ofstream packet_logger_stream_;
+};
+
+}  // namespace webrtc
+
+#endif  // RTC_TOOLS_NETWORK_TESTER_PACKET_LOGGER_H_
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/packet_sender.cc b/third_party/libwebrtc/rtc_tools/network_tester/packet_sender.cc
new file mode 100644
index 0000000000..c9917373fe
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/packet_sender.cc
@@ -0,0 +1,133 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_tools/network_tester/packet_sender.h"
+
+#include <algorithm>
+#include <memory>
+#include <string>
+#include <utility>
+
+#include "absl/functional/any_invocable.h"
+#include "api/task_queue/pending_task_safety_flag.h"
+#include "api/task_queue/task_queue_base.h"
+#include "rtc_base/time_utils.h"
+#include "rtc_tools/network_tester/config_reader.h"
+#include "rtc_tools/network_tester/test_controller.h"
+
+namespace webrtc {
+
+namespace {
+
+absl::AnyInvocable<void() &&> SendPacketTask(
+    PacketSender* packet_sender,
+    rtc::scoped_refptr<webrtc::PendingTaskSafetyFlag> task_safety_flag,
+    int64_t target_time_ms = rtc::TimeMillis()) {
+  return [target_time_ms, packet_sender,
+          task_safety_flag = std::move(task_safety_flag)]() mutable {
+    if (task_safety_flag->alive() && packet_sender->IsSending()) {
+      packet_sender->SendPacket();
+      target_time_ms += packet_sender->GetSendIntervalMs();
+      int64_t delay_ms =
+          std::max(static_cast<int64_t>(0), target_time_ms - rtc::TimeMillis());
+      TaskQueueBase::Current()->PostDelayedTask(
+          SendPacketTask(packet_sender, std::move(task_safety_flag),
+                         target_time_ms),
+          TimeDelta::Millis(delay_ms));
+    }
+  };
+}
+
+absl::AnyInvocable<void() &&> UpdateTestSettingTask(
+    PacketSender* packet_sender,
+    std::unique_ptr<ConfigReader> config_reader,
+    rtc::scoped_refptr<webrtc::PendingTaskSafetyFlag> task_safety_flag) {
+  return [packet_sender, config_reader = std::move(config_reader),
+          task_safety_flag = std::move(task_safety_flag)]() mutable {
+    if (!task_safety_flag->alive()) {
+      return;
+    }
+    if (absl::optional<ConfigReader::Config> config =
+            config_reader->GetNextConfig()) {
+      packet_sender->UpdateTestSetting(config->packet_size,
+                                       config->packet_send_interval_ms);
+      TaskQueueBase::Current()->PostDelayedTask(
+          UpdateTestSettingTask(packet_sender, std::move(config_reader),
+                                std::move(task_safety_flag)),
+          TimeDelta::Millis(config->execution_time_ms));
+    } else {
+      packet_sender->StopSending();
+    }
+  };
+}
+
+}  // namespace
+
+PacketSender::PacketSender(
+    TestController* test_controller,
+    webrtc::TaskQueueBase* worker_queue,
+    rtc::scoped_refptr<webrtc::PendingTaskSafetyFlag> task_safety_flag,
+    const std::string& config_file_path)
+    : packet_size_(0),
+      send_interval_ms_(0),
+      sequence_number_(0),
+      sending_(false),
+      config_file_path_(config_file_path),
+      test_controller_(test_controller),
+      worker_queue_(worker_queue),
+      task_safety_flag_(task_safety_flag) {}
+
+PacketSender::~PacketSender() = default;
+
+void PacketSender::StartSending() {
+  worker_queue_checker_.Detach();
+  worker_queue_->PostTask(SafeTask(task_safety_flag_, [this]() {
+    RTC_DCHECK_RUN_ON(&worker_queue_checker_);
+    sending_ = true;
+  }));
+  worker_queue_->PostTask(UpdateTestSettingTask(
+      this, std::make_unique<ConfigReader>(config_file_path_),
+      task_safety_flag_));
+  worker_queue_->PostTask(SendPacketTask(this, task_safety_flag_));
+}
+
+void PacketSender::StopSending() {
+  RTC_DCHECK_RUN_ON(&worker_queue_checker_);
+  sending_ = false;
+  test_controller_->OnTestDone();
+}
+
+bool PacketSender::IsSending() const {
+  RTC_DCHECK_RUN_ON(&worker_queue_checker_);
+  return sending_;
+}
+
+void PacketSender::SendPacket() {
+  RTC_DCHECK_RUN_ON(&worker_queue_checker_);
+  NetworkTesterPacket packet;
+  packet.set_type(NetworkTesterPacket::TEST_DATA);
+  packet.set_sequence_number(sequence_number_++);
+  packet.set_send_timestamp(rtc::TimeMicros());
+  test_controller_->SendData(packet, packet_size_);
+}
+
+int64_t PacketSender::GetSendIntervalMs() const {
+  RTC_DCHECK_RUN_ON(&worker_queue_checker_);
+  return send_interval_ms_;
+}
+
+void PacketSender::UpdateTestSetting(size_t packet_size,
+                                     int64_t send_interval_ms) {
+  RTC_DCHECK_RUN_ON(&worker_queue_checker_);
+  send_interval_ms_ = send_interval_ms;
+  packet_size_ = packet_size;
+}
+
+}  // namespace webrtc
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/packet_sender.h b/third_party/libwebrtc/rtc_tools/network_tester/packet_sender.h
new file mode 100644
index 0000000000..7fd500f27c
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/packet_sender.h
@@ -0,0 +1,71 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_TOOLS_NETWORK_TESTER_PACKET_SENDER_H_
+#define RTC_TOOLS_NETWORK_TESTER_PACKET_SENDER_H_
+
+#include <memory>
+#include <string>
+
+#include "api/sequence_checker.h"
+#include "api/task_queue/pending_task_safety_flag.h"
+#include "api/task_queue/task_queue_factory.h"
+#include "rtc_base/ignore_wundef.h"
+#include "rtc_base/system/no_unique_address.h"
+
+#ifdef WEBRTC_NETWORK_TESTER_PROTO
+RTC_PUSH_IGNORING_WUNDEF()
+#include "rtc_tools/network_tester/network_tester_packet.pb.h"
+RTC_POP_IGNORING_WUNDEF()
+using webrtc::network_tester::packet::NetworkTesterPacket;
+#else
+class NetworkTesterPacket;
+#endif  // WEBRTC_NETWORK_TESTER_PROTO
+
+namespace webrtc {
+
+class TestController;
+
+class PacketSender {
+ public:
+  PacketSender(
+      TestController* test_controller,
+      webrtc::TaskQueueBase* worker_queue,
+      rtc::scoped_refptr<webrtc::PendingTaskSafetyFlag> task_safety_flag,
+      const std::string& config_file_path);
+  ~PacketSender();
+
+  PacketSender(const PacketSender&) = delete;
+  PacketSender& operator=(const PacketSender&) = delete;
+
+  void StartSending();
+  void StopSending();
+  bool IsSending() const;
+
+  void SendPacket();
+
+  int64_t GetSendIntervalMs() const;
+  void UpdateTestSetting(size_t packet_size, int64_t send_interval_ms);
+
+ private:
+  RTC_NO_UNIQUE_ADDRESS SequenceChecker worker_queue_checker_;
+  size_t packet_size_ RTC_GUARDED_BY(worker_queue_checker_);
+  int64_t send_interval_ms_ RTC_GUARDED_BY(worker_queue_checker_);
+  int64_t sequence_number_ RTC_GUARDED_BY(worker_queue_checker_);
+  bool sending_ RTC_GUARDED_BY(worker_queue_checker_);
+  const std::string config_file_path_;
+  TestController* const test_controller_;
+  webrtc::TaskQueueBase* worker_queue_;
+  rtc::scoped_refptr<webrtc::PendingTaskSafetyFlag> task_safety_flag_;
+};
+
+}  // namespace webrtc
+
+#endif  // RTC_TOOLS_NETWORK_TESTER_PACKET_SENDER_H_
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/parse_packet_log.py b/third_party/libwebrtc/rtc_tools/network_tester/parse_packet_log.py
new file mode 100755
index 0000000000..be86e0c88d
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/parse_packet_log.py
@@ -0,0 +1,150 @@
+#  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+#
+#  Use of this source code is governed by a BSD-style license
+#  that can be found in the LICENSE file in the root of the source
+#  tree. An additional intellectual property rights grant can be found
+#  in the file PATENTS.  All contributing project authors may
+#  be found in the AUTHORS file in the root of the source tree.
+
+#  To run this script please copy "out/<build_name>/pyproto/webrtc/rtc_tools/
+#  network_tester/network_tester_packet_pb2.py" next to this script.
+#  The you can run this script with:
+#  "python parse_packet_log.py -f packet_log.dat"
+#  for more information call:
+#  "python parse_packet_log.py --help"
+
+from optparse import OptionParser
+import struct
+
+import matplotlib.pyplot as plt
+
+import network_tester_packet_pb2
+
+
+def GetSize(file_to_parse):
+    data = file_to_parse.read(1)
+    if data == '':
+        return 0
+    return struct.unpack('<b', data)[0]
+
+
+def ParsePacketLog(packet_log_file_to_parse):
+    packets = []
+    with open(packet_log_file_to_parse, 'rb') as file_to_parse:
+        while True:
+            size = GetSize(file_to_parse)
+            if size == 0:
+                break
+            try:
+                packet = network_tester_packet_pb2.NetworkTesterPacket()
+                packet.ParseFromString(file_to_parse.read(size))
+                packets.append(packet)
+            except IOError:
+                break
+    return packets
+
+
+def GetTimeAxis(packets):
+    first_arrival_time = packets[0].arrival_timestamp
+    return [(packet.arrival_timestamp - first_arrival_time) / 1000000.0
+            for packet in packets]
+
+
+def CreateSendTimeDiffPlot(packets, plot):
+    first_send_time_diff = (packets[0].arrival_timestamp -
+                            packets[0].send_timestamp)
+    y = [(packet.arrival_timestamp - packet.send_timestamp) -
+         first_send_time_diff for packet in packets]
+    plot.grid(True)
+    plot.set_title("SendTime difference [us]")
+    plot.plot(GetTimeAxis(packets), y)
+
+
+class MovingAverageBitrate(object):
+    def __init__(self):
+        self.packet_window = []
+        self.window_time = 1000000
+        self.bytes = 0
+        self.latest_packet_time = 0
+        self.send_interval = 0
+
+    def RemoveOldPackets(self):
+        for packet in self.packet_window:
+            if (self.latest_packet_time - packet.arrival_timestamp >
+                    self.window_time):
+                self.bytes = self.bytes - packet.packet_size
+                self.packet_window.remove(packet)
+
+    def AddPacket(self, packet):
+        """This functions returns bits / second"""
+        self.send_interval = packet.arrival_timestamp - self.latest_packet_time
+        self.latest_packet_time = packet.arrival_timestamp
+        self.RemoveOldPackets()
+        self.packet_window.append(packet)
+        self.bytes = self.bytes + packet.packet_size
+        return self.bytes * 8
+
+
+def CreateReceiveBiratePlot(packets, plot):
+    bitrate = MovingAverageBitrate()
+    y = [bitrate.AddPacket(packet) for packet in packets]
+    plot.grid(True)
+    plot.set_title("Receive birate [bps]")
+    plot.plot(GetTimeAxis(packets), y)
+
+
+def CreatePacketlossPlot(packets, plot):
+    packets_look_up = {}
+    first_sequence_number = packets[0].sequence_number
+    last_sequence_number = packets[-1].sequence_number
+    for packet in packets:
+        packets_look_up[packet.sequence_number] = packet
+    y = []
+    x = []
+    first_arrival_time = 0
+    last_arrival_time = 0
+    last_arrival_time_diff = 0
+    for sequence_number in range(first_sequence_number,
+                                 last_sequence_number + 1):
+        if sequence_number in packets_look_up:
+            y.append(0)
+            if first_arrival_time == 0:
+                first_arrival_time = packets_look_up[
+                    sequence_number].arrival_timestamp
+            x_time = (packets_look_up[sequence_number].arrival_timestamp -
+                      first_arrival_time)
+            if last_arrival_time != 0:
+                last_arrival_time_diff = x_time - last_arrival_time
+            last_arrival_time = x_time
+            x.append(x_time / 1000000.0)
+        else:
+            if last_arrival_time != 0 and last_arrival_time_diff != 0:
+                x.append(
+                    (last_arrival_time + last_arrival_time_diff) / 1000000.0)
+                y.append(1)
+    plot.grid(True)
+    plot.set_title("Lost packets [0/1]")
+    plot.plot(x, y)
+
+
+def main():
+    parser = OptionParser()
+    parser.add_option("-f",
+                      "--packet_log_file",
+                      dest="packet_log_file",
+                      help="packet_log file to parse")
+
+    options = parser.parse_args()[0]
+
+    packets = ParsePacketLog(options.packet_log_file)
+    f, plots = plt.subplots(3, sharex=True)
+    plt.xlabel('time [sec]')
+    CreateSendTimeDiffPlot(packets, plots[0])
+    CreateReceiveBiratePlot(packets, plots[1])
+    CreatePacketlossPlot(packets, plots[2])
+    f.subplots_adjust(hspace=0.3)
+    plt.show()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/server.cc b/third_party/libwebrtc/rtc_tools/network_tester/server.cc
new file mode 100644
index 0000000000..f0f610a925
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/server.cc
@@ -0,0 +1,23 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_base/null_socket_server.h"
+#include "rtc_tools/network_tester/test_controller.h"
+
+int main(int /*argn*/, char* /*argv*/[]) {
+  rtc::Thread main_thread(std::make_unique<rtc::NullSocketServer>());
+  webrtc::TestController server(9090, 9090, "server_config.dat",
+                                "server_packet_log.dat");
+  while (!server.IsTestDone()) {
+    // 100 ms is arbitrary chosen.
+    main_thread.ProcessMessages(/*cms=*/100);
+  }
+  return 0;
+}
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/test_controller.cc b/third_party/libwebrtc/rtc_tools/network_tester/test_controller.cc
new file mode 100644
index 0000000000..6fe83fd430
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/test_controller.cc
@@ -0,0 +1,158 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_tools/network_tester/test_controller.h"
+
+#include <limits>
+
+#include "absl/types/optional.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/internal/default_socket_server.h"
+#include "rtc_base/ip_address.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/thread.h"
+
+namespace webrtc {
+
+TestController::TestController(int min_port,
+                               int max_port,
+                               const std::string& config_file_path,
+                               const std::string& log_file_path)
+    : socket_server_(rtc::CreateDefaultSocketServer()),
+      packet_sender_thread_(
+          std::make_unique<rtc::Thread>(socket_server_.get())),
+      socket_factory_(socket_server_.get()),
+      config_file_path_(config_file_path),
+      packet_logger_(log_file_path),
+      local_test_done_(false),
+      remote_test_done_(false),
+      task_safety_flag_(PendingTaskSafetyFlag::CreateDetached()) {
+  RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+  send_data_.fill(42);
+  packet_sender_thread_->SetName("PacketSender", nullptr);
+  packet_sender_thread_->Start();
+  packet_sender_thread_->BlockingCall([&] {
+    RTC_DCHECK_RUN_ON(packet_sender_thread_.get());
+    udp_socket_ =
+        std::unique_ptr<rtc::AsyncPacketSocket>(socket_factory_.CreateUdpSocket(
+            rtc::SocketAddress(rtc::GetAnyIP(AF_INET), 0), min_port, max_port));
+    udp_socket_->SignalReadPacket.connect(this, &TestController::OnReadPacket);
+  });
+}
+
+TestController::~TestController() {
+  RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+  packet_sender_thread_->BlockingCall(
+      [this]() { task_safety_flag_->SetNotAlive(); });
+}
+
+void TestController::SendConnectTo(const std::string& hostname, int port) {
+  RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+  remote_address_ = rtc::SocketAddress(hostname, port);
+  NetworkTesterPacket packet;
+  packet.set_type(NetworkTesterPacket::HAND_SHAKING);
+  SendData(packet, absl::nullopt);
+  MutexLock scoped_lock(&test_done_lock_);
+  local_test_done_ = false;
+  remote_test_done_ = false;
+}
+
+void TestController::SendData(const NetworkTesterPacket& packet,
+                              absl::optional<size_t> data_size) {
+  if (!packet_sender_thread_->IsCurrent()) {
+    packet_sender_thread_->PostTask(SafeTask(
+        task_safety_flag_,
+        [this, packet, data_size]() { this->SendData(packet, data_size); }));
+    return;
+  }
+  RTC_DCHECK_RUN_ON(packet_sender_thread_.get());
+  RTC_LOG(LS_VERBOSE) << "SendData";
+
+  // Can be call from packet_sender or from test_controller thread.
+  size_t packet_size = packet.ByteSizeLong();
+  send_data_[0] = packet_size;
+  packet_size++;
+  packet.SerializeToArray(&send_data_[1], std::numeric_limits<char>::max());
+  if (data_size && *data_size > packet_size)
+    packet_size = *data_size;
+  udp_socket_->SendTo((const void*)send_data_.data(), packet_size,
+                      remote_address_, rtc::PacketOptions());
+}
+
+void TestController::OnTestDone() {
+  RTC_DCHECK_RUN_ON(packet_sender_thread_.get());
+  NetworkTesterPacket packet;
+  packet.set_type(NetworkTesterPacket::TEST_DONE);
+  SendData(packet, absl::nullopt);
+  MutexLock scoped_lock(&test_done_lock_);
+  local_test_done_ = true;
+}
+
+bool TestController::IsTestDone() {
+  RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+  MutexLock scoped_lock(&test_done_lock_);
+  return local_test_done_ && remote_test_done_;
+}
+
+void TestController::OnReadPacket(rtc::AsyncPacketSocket* socket,
+                                  const char* data,
+                                  size_t len,
+                                  const rtc::SocketAddress& remote_addr,
+                                  const int64_t& packet_time_us) {
+  RTC_DCHECK_RUN_ON(packet_sender_thread_.get());
+  RTC_LOG(LS_VERBOSE) << "OnReadPacket";
+  size_t packet_size = data[0];
+  std::string receive_data(&data[1], packet_size);
+  NetworkTesterPacket packet;
+  packet.ParseFromString(receive_data);
+  RTC_CHECK(packet.has_type());
+  switch (packet.type()) {
+    case NetworkTesterPacket::HAND_SHAKING: {
+      NetworkTesterPacket packet;
+      packet.set_type(NetworkTesterPacket::TEST_START);
+      remote_address_ = remote_addr;
+      SendData(packet, absl::nullopt);
+      packet_sender_.reset(new PacketSender(this, packet_sender_thread_.get(),
+                                            task_safety_flag_,
+                                            config_file_path_));
+      packet_sender_->StartSending();
+      MutexLock scoped_lock(&test_done_lock_);
+      local_test_done_ = false;
+      remote_test_done_ = false;
+      break;
+    }
+    case NetworkTesterPacket::TEST_START: {
+      packet_sender_.reset(new PacketSender(this, packet_sender_thread_.get(),
+                                            task_safety_flag_,
+                                            config_file_path_));
+      packet_sender_->StartSending();
+      MutexLock scoped_lock(&test_done_lock_);
+      local_test_done_ = false;
+      remote_test_done_ = false;
+      break;
+    }
+    case NetworkTesterPacket::TEST_DATA: {
+      packet.set_arrival_timestamp(packet_time_us);
+      packet.set_packet_size(len);
+      packet_logger_.LogPacket(packet);
+      break;
+    }
+    case NetworkTesterPacket::TEST_DONE: {
+      MutexLock scoped_lock(&test_done_lock_);
+      remote_test_done_ = true;
+      break;
+    }
+    default: {
+      RTC_DCHECK_NOTREACHED();
+    }
+  }
+}
+
+}  // namespace webrtc
diff --git a/third_party/libwebrtc/rtc_tools/network_tester/test_controller.h b/third_party/libwebrtc/rtc_tools/network_tester/test_controller.h
new file mode 100644
index 0000000000..b08fbd5dd8
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/network_tester/test_controller.h
@@ -0,0 +1,95 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_TOOLS_NETWORK_TESTER_TEST_CONTROLLER_H_
+#define RTC_TOOLS_NETWORK_TESTER_TEST_CONTROLLER_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <array>
+#include <memory>
+#include <string>
+
+#include "absl/types/optional.h"
+#include "api/sequence_checker.h"
+#include "p2p/base/basic_packet_socket_factory.h"
+#include "rtc_base/async_packet_socket.h"
+#include "rtc_base/ignore_wundef.h"
+#include "rtc_base/socket_address.h"
+#include "rtc_base/synchronization/mutex.h"
+#include "rtc_base/system/no_unique_address.h"
+#include "rtc_base/third_party/sigslot/sigslot.h"
+#include "rtc_base/thread_annotations.h"
+#include "rtc_tools/network_tester/packet_logger.h"
+#include "rtc_tools/network_tester/packet_sender.h"
+
+#ifdef WEBRTC_NETWORK_TESTER_PROTO
+RTC_PUSH_IGNORING_WUNDEF()
+#include "rtc_tools/network_tester/network_tester_packet.pb.h"
+RTC_POP_IGNORING_WUNDEF()
+using webrtc::network_tester::packet::NetworkTesterPacket;
+#else
+class NetworkTesterPacket;
+#endif  // WEBRTC_NETWORK_TESTER_PROTO
+
+namespace webrtc {
+
+constexpr size_t kEthernetMtu = 1500;
+
+class TestController : public sigslot::has_slots<> {
+ public:
+  TestController(int min_port,
+                 int max_port,
+                 const std::string& config_file_path,
+                 const std::string& log_file_path);
+  ~TestController() override;
+
+  TestController(const TestController&) = delete;
+  TestController& operator=(const TestController&) = delete;
+
+  void SendConnectTo(const std::string& hostname, int port);
+
+  void SendData(const NetworkTesterPacket& packet,
+                absl::optional<size_t> data_size);
+
+  void OnTestDone();
+
+  bool IsTestDone();
+
+ private:
+  void OnReadPacket(rtc::AsyncPacketSocket* socket,
+                    const char* data,
+                    size_t len,
+                    const rtc::SocketAddress& remote_addr,
+                    const int64_t& packet_time_us);
+  RTC_NO_UNIQUE_ADDRESS SequenceChecker test_controller_thread_checker_;
+  std::unique_ptr<rtc::SocketServer> socket_server_;
+  std::unique_ptr<rtc::Thread> packet_sender_thread_;
+  rtc::BasicPacketSocketFactory socket_factory_
+      RTC_GUARDED_BY(packet_sender_thread_);
+  const std::string config_file_path_;
+  PacketLogger packet_logger_ RTC_GUARDED_BY(packet_sender_thread_);
+  Mutex test_done_lock_ RTC_GUARDED_BY(test_controller_thread_checker_);
+  bool local_test_done_ RTC_GUARDED_BY(test_done_lock_);
+  bool remote_test_done_ RTC_GUARDED_BY(test_done_lock_);
+  std::array<char, kEthernetMtu> send_data_
+      RTC_GUARDED_BY(packet_sender_thread_);
+  std::unique_ptr<rtc::AsyncPacketSocket> udp_socket_
+      RTC_GUARDED_BY(packet_sender_thread_);
+  rtc::SocketAddress remote_address_;
+  std::unique_ptr<PacketSender> packet_sender_
+      RTC_GUARDED_BY(packet_sender_thread_);
+  rtc::scoped_refptr<webrtc::PendingTaskSafetyFlag> task_safety_flag_;
+};
+
+}  // namespace webrtc
+
+#endif  // RTC_TOOLS_NETWORK_TESTER_TEST_CONTROLLER_H_
-- 
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