Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1209 insertions, 0 deletions

diff --git a/dom/media/gmp/GMPParent.cpp b/dom/media/gmp/GMPParent.cpp
new file mode 100644
index 0000000000..6c1acc3a20
--- /dev/null
+++ b/dom/media/gmp/GMPParent.cpp
@@ -0,0 +1,1209 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GMPParent.h"
+
+#include "CDMStorageIdProvider.h"
+#include "ChromiumCDMAdapter.h"
+#include "GMPContentParent.h"
+#include "GMPLog.h"
+#include "GMPTimerParent.h"
+#include "MediaResult.h"
+#include "mozIGeckoMediaPluginService.h"
+#include "mozilla/dom/KeySystemNames.h"
+#include "mozilla/dom/WidevineCDMManifestBinding.h"
+#include "mozilla/FOGIPC.h"
+#include "mozilla/ipc/CrashReporterHost.h"
+#include "mozilla/ipc/Endpoint.h"
+#include "mozilla/ipc/GeckoChildProcessHost.h"
+#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
+#  include "mozilla/SandboxInfo.h"
+#  include "base/shared_memory.h"
+#endif
+#include "mozilla/Services.h"
+#include "mozilla/SSE.h"
+#include "mozilla/StaticPrefs_media.h"
+#include "mozilla/SyncRunnable.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/Unused.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIRunnable.h"
+#include "nsIObserverService.h"
+#include "nsIWritablePropertyBag2.h"
+#include "nsPrintfCString.h"
+#include "nsThreadUtils.h"
+#include "ProfilerParent.h"
+#include "runnable_utils.h"
+#ifdef XP_WIN
+#  include "mozilla/FileUtilsWin.h"
+#  include "WMFDecoderModule.h"
+#endif
+#if defined(MOZ_WIDGET_ANDROID)
+#  include "mozilla/java/GeckoProcessManagerWrappers.h"
+#  include "mozilla/java/GeckoProcessTypeWrappers.h"
+#endif  // defined(MOZ_WIDGET_ANDROID)
+#if defined(XP_MACOSX)
+#  include "nsMacUtilsImpl.h"
+#  include "base/process_util.h"
+#endif  // defined(XP_MACOSX)
+
+using mozilla::ipc::GeckoChildProcessHost;
+
+using CrashReporter::AnnotationTable;
+
+namespace mozilla::gmp {
+
+#define GMP_PARENT_LOG_DEBUG(x, ...) \
+  GMP_LOG_DEBUG("GMPParent[%p|childPid=%d] " x, this, mChildPid, ##__VA_ARGS__)
+
+#ifdef __CLASS__
+#  undef __CLASS__
+#endif
+#define __CLASS__ "GMPParent"
+
+GMPParent::GMPParent()
+    : mState(GMPState::NotLoaded),
+      mPluginId(GeckoChildProcessHost::GetUniqueID()),
+      mProcess(nullptr),
+      mDeleteProcessOnlyOnUnload(false),
+      mAbnormalShutdownInProgress(false),
+      mIsBlockingDeletion(false),
+      mCanDecrypt(false),
+      mGMPContentChildCount(0),
+      mChildPid(0),
+#ifdef ALLOW_GECKO_CHILD_PROCESS_ARCH
+      mChildLaunchArch(base::PROCESS_ARCH_INVALID),
+#endif
+      mMainThread(GetMainThreadSerialEventTarget()) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("GMPParent ctor id=%u", mPluginId);
+}
+
+GMPParent::~GMPParent() {
+  // This method is not restricted to a specific thread.
+  GMP_PARENT_LOG_DEBUG("GMPParent dtor id=%u", mPluginId);
+  MOZ_ASSERT(!mProcess);
+}
+
+void GMPParent::CloneFrom(const GMPParent* aOther) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  MOZ_ASSERT(aOther->mDirectory && aOther->mService, "null plugin directory");
+
+  mService = aOther->mService;
+  mDirectory = aOther->mDirectory;
+  mName = aOther->mName;
+  mVersion = aOther->mVersion;
+  mDescription = aOther->mDescription;
+  mDisplayName = aOther->mDisplayName;
+  mPluginType = aOther->mPluginType;
+#if defined(XP_WIN) || defined(XP_LINUX)
+  mLibs = aOther->mLibs;
+#endif
+  for (const GMPCapability& cap : aOther->mCapabilities) {
+    mCapabilities.AppendElement(cap);
+  }
+  mAdapter = aOther->mAdapter;
+
+#ifdef ALLOW_GECKO_CHILD_PROCESS_ARCH
+  mChildLaunchArch = aOther->mChildLaunchArch;
+#endif
+}
+
+#if defined(XP_WIN) || defined(XP_MACOSX)
+nsresult GMPParent::GetPluginFileArch(nsIFile* aPluginDir,
+                                      const nsString& aBaseName,
+                                      uint32_t& aArchSet) {
+  // Build up the plugin filename
+#  if defined(XP_MACOSX)
+  nsAutoString pluginFileName = u"lib"_ns + aBaseName + u".dylib"_ns;
+#  elif defined(XP_WIN)
+  nsAutoString pluginFileName = aBaseName + u".dll"_ns;
+#  endif
+  GMP_PARENT_LOG_DEBUG("%s: pluginFileName: %s", __FUNCTION__,
+                       NS_LossyConvertUTF16toASCII(pluginFileName).get());
+
+  // Create an nsIFile representing the plugin
+  nsCOMPtr<nsIFile> pluginFile;
+  nsresult rv = aPluginDir->Clone(getter_AddRefs(pluginFile));
+  NS_ENSURE_SUCCESS(rv, rv);
+  pluginFile->AppendRelativePath(pluginFileName);
+
+#  if defined(XP_MACOSX)
+  // Get the full plugin path
+  nsAutoCString pluginPath;
+  rv = pluginFile->GetNativePath(pluginPath);
+  NS_ENSURE_SUCCESS(rv, rv);
+  GMP_PARENT_LOG_DEBUG("%s: pluginPath: %s", __FUNCTION__, pluginPath.get());
+
+  rv = nsMacUtilsImpl::GetArchitecturesForBinary(pluginPath.get(), &aArchSet);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+#    if defined(__aarch64__)
+  mPluginFilePath = pluginPath;
+#    endif
+#  elif defined(XP_WIN)
+  // Get the full plugin path
+  nsAutoString pluginPath;
+  rv = pluginFile->GetTarget(pluginPath);
+  NS_ENSURE_SUCCESS(rv, rv);
+  GMP_PARENT_LOG_DEBUG("%s: pluginPath: %s", __FUNCTION__,
+                       NS_LossyConvertUTF16toASCII(pluginPath).get());
+
+  aArchSet = GetExecutableArchitecture(pluginPath.get());
+  if (aArchSet == base::PROCESS_ARCH_INVALID) {
+    return NS_ERROR_FAILURE;
+  }
+#  endif
+
+  return NS_OK;
+}
+#endif  // defined(XP_WIN) || defined(XP_MACOSX)
+
+RefPtr<GenericPromise> GMPParent::Init(GeckoMediaPluginServiceParent* aService,
+                                       nsIFile* aPluginDir) {
+  MOZ_ASSERT(aPluginDir);
+  MOZ_ASSERT(aService);
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+
+  mService = aService;
+  mDirectory = aPluginDir;
+
+  // aPluginDir is <profile-dir>/<gmp-plugin-id>/<version>
+  // where <gmp-plugin-id> should be gmp-gmpopenh264
+  nsCOMPtr<nsIFile> parent;
+  nsresult rv = aPluginDir->GetParent(getter_AddRefs(parent));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  nsAutoString parentLeafName;
+  rv = parent->GetLeafName(parentLeafName);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  GMP_PARENT_LOG_DEBUG("%s: for %s", __FUNCTION__,
+                       NS_LossyConvertUTF16toASCII(parentLeafName).get());
+
+  MOZ_ASSERT(parentLeafName.Length() > 4);
+  mName = Substring(parentLeafName, 4);
+
+#if defined(XP_WIN) || defined(XP_MACOSX)
+  uint32_t pluginArch = base::PROCESS_ARCH_INVALID;
+  rv = GetPluginFileArch(aPluginDir, mName, pluginArch);
+  if (NS_FAILED(rv)) {
+    GMP_PARENT_LOG_DEBUG("%s: Plugin arch error: %d", __FUNCTION__, rv);
+  } else {
+    GMP_PARENT_LOG_DEBUG("%s: Plugin arch: 0x%x", __FUNCTION__, pluginArch);
+  }
+
+  const uint32_t x86 = base::PROCESS_ARCH_X86_64 | base::PROCESS_ARCH_I386;
+#  ifdef ALLOW_GECKO_CHILD_PROCESS_ARCH
+  const uint32_t arm64 = base::PROCESS_ARCH_ARM_64;
+
+  mChildLaunchArch = pluginArch;
+  // When executing in an ARM64 process, if the library is x86 or x64,
+  // set |mChildLaunchArch| to x64 and allow the library to be used as long
+  // as this process is a universal binary.
+  if (!(pluginArch & arm64) && (pluginArch & x86)) {
+    bool isWidevine = parentLeafName.Find(u"widevine") != kNotFound;
+    bool isWidevineAllowed =
+        StaticPrefs::media_gmp_widevinecdm_allow_x64_plugin_on_arm64();
+    bool isH264 = parentLeafName.Find(u"openh264") != kNotFound;
+    bool isH264Allowed =
+        StaticPrefs::media_gmp_gmpopenh264_allow_x64_plugin_on_arm64();
+    bool isClearkey = parentLeafName.Find(u"clearkey") != kNotFound;
+    bool isClearkeyAllowed =
+        StaticPrefs::media_gmp_gmpclearkey_allow_x64_plugin_on_arm64();
+
+    // Only allow x64 child GMP processes for Widevine, OpenH264 and Clearkey
+    if (!isWidevine && !isH264 && !isClearkey) {
+      return GenericPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED,
+                                             __func__);
+    }
+    // And only if prefs permit it.
+    if ((isWidevine && !isWidevineAllowed) || (isH264 && !isH264Allowed) ||
+        (isClearkey && !isClearkeyAllowed)) {
+      return GenericPromise::CreateAndReject(NS_ERROR_PLUGIN_DISABLED,
+                                             __func__);
+    }
+
+#    ifdef XP_MACOSX
+    // We have an x64 library. Get the bundle architecture to determine
+    // if we are a universal binary and hence if we can launch an x64
+    // child process to host this plugin.
+    uint32_t bundleArch = base::PROCESS_ARCH_INVALID;
+    rv = nsMacUtilsImpl::GetArchitecturesForBundle(&bundleArch);
+    if (NS_FAILED(rv)) {
+      // If we fail here, continue as if this is not a univeral binary.
+      GMP_PARENT_LOG_DEBUG("%s: Bundle arch error: %d", __FUNCTION__, rv);
+    } else {
+      GMP_PARENT_LOG_DEBUG("%s: Bundle arch: 0x%x", __FUNCTION__, bundleArch);
+    }
+
+    bool isUniversalBinary = (bundleArch & base::PROCESS_ARCH_X86_64) &&
+                             (bundleArch & base::PROCESS_ARCH_ARM_64);
+    if (isUniversalBinary) {
+      mChildLaunchArch = base::PROCESS_ARCH_X86_64;
+      PreTranslateBins();
+    } else {
+      return GenericPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED,
+                                             __func__);
+    }
+#    endif
+  }
+#  else
+  // When executing in a non-ARM process, if the library is not x86 or x64,
+  // remove it and return an error. This prevents a child process crash due
+  // to loading an incompatible library and forces a new plugin version to be
+  // downloaded when the check is next performed. This could occur if a profile
+  // is moved from an ARM64 system to an x64 system.
+  if ((pluginArch & x86) == 0) {
+    GMP_PARENT_LOG_DEBUG("%s: Removing plugin directory", __FUNCTION__);
+    aPluginDir->Remove(true);
+    return GenericPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED, __func__);
+  }
+#  endif  // defined(ALLOW_GECKO_CHILD_PROCESS_ARCH)
+#endif    // defined(XP_WIN) || defined(XP_MACOSX)
+
+  return ReadGMPMetaData();
+}
+
+void GMPParent::Crash() {
+  if (mState != GMPState::NotLoaded) {
+    Unused << SendCrashPluginNow();
+  }
+}
+
+class NotifyGMPProcessLoadedTask : public Runnable {
+ public:
+  explicit NotifyGMPProcessLoadedTask(const ::base::ProcessId aProcessId,
+                                      GMPParent* aGMPParent)
+      : Runnable("NotifyGMPProcessLoadedTask"),
+        mProcessId(aProcessId),
+        mGMPParent(aGMPParent) {}
+
+  NS_IMETHOD Run() override {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    bool canProfile = true;
+
+#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
+    if (SandboxInfo::Get().Test(SandboxInfo::kEnabledForMedia) &&
+        base::SharedMemory::UsingPosixShm()) {
+      canProfile = false;
+    }
+#endif
+
+    if (canProfile) {
+      nsCOMPtr<nsISerialEventTarget> gmpEventTarget =
+          mGMPParent->GMPEventTarget();
+      if (!gmpEventTarget) {
+        return NS_ERROR_FAILURE;
+      }
+
+      ipc::Endpoint<PProfilerChild> profilerParent(
+          ProfilerParent::CreateForProcess(mProcessId));
+
+      gmpEventTarget->Dispatch(
+          NewRunnableMethod<ipc::Endpoint<mozilla::PProfilerChild>&&>(
+              "GMPParent::SendInitProfiler", mGMPParent,
+              &GMPParent::SendInitProfiler, std::move(profilerParent)));
+    }
+
+    return NS_OK;
+  }
+
+  ::base::ProcessId mProcessId;
+  const RefPtr<GMPParent> mGMPParent;
+};
+
+nsresult GMPParent::LoadProcess() {
+  MOZ_ASSERT(mDirectory, "Plugin directory cannot be NULL!");
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  MOZ_ASSERT(mState == GMPState::NotLoaded);
+
+  nsAutoString path;
+  if (NS_WARN_IF(NS_FAILED(mDirectory->GetPath(path)))) {
+    return NS_ERROR_FAILURE;
+  }
+  GMP_PARENT_LOG_DEBUG("%s: for %s", __FUNCTION__,
+                       NS_ConvertUTF16toUTF8(path).get());
+
+  if (!mProcess) {
+    mProcess = new GMPProcessParent(NS_ConvertUTF16toUTF8(path).get());
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+    mProcess->SetRequiresWindowServer(mAdapter.EqualsLiteral("chromium"));
+#endif
+
+#ifdef ALLOW_GECKO_CHILD_PROCESS_ARCH
+    mProcess->SetLaunchArchitecture(mChildLaunchArch);
+#endif
+
+    if (!mProcess->Launch(30 * 1000)) {
+      GMP_PARENT_LOG_DEBUG("%s: Failed to launch new child process",
+                           __FUNCTION__);
+      mProcess->Delete();
+      mProcess = nullptr;
+      return NS_ERROR_FAILURE;
+    }
+
+    mChildPid = mProcess->GetChildProcessId();
+    GMP_PARENT_LOG_DEBUG("%s: Launched new child process", __FUNCTION__);
+
+    bool opened = mProcess->TakeInitialEndpoint().Bind(this);
+    if (!opened) {
+      GMP_PARENT_LOG_DEBUG("%s: Failed to open channel to new child process",
+                           __FUNCTION__);
+      mProcess->Delete();
+      mProcess = nullptr;
+      return NS_ERROR_FAILURE;
+    }
+    GMP_PARENT_LOG_DEBUG("%s: Opened channel to new child process",
+                         __FUNCTION__);
+
+    // ComputeStorageId may return empty string, we leave the error handling to
+    // CDM. The CDM will reject the promise once we provide a empty string of
+    // storage id.
+    bool ok =
+        SendProvideStorageId(CDMStorageIdProvider::ComputeStorageId(mNodeId));
+    if (!ok) {
+      GMP_PARENT_LOG_DEBUG("%s: Failed to send storage id to child process",
+                           __FUNCTION__);
+      return NS_ERROR_FAILURE;
+    }
+    GMP_PARENT_LOG_DEBUG("%s: Sent storage id to child process", __FUNCTION__);
+
+#if defined(XP_WIN) || defined(XP_LINUX)
+    if (!mLibs.IsEmpty()) {
+      bool ok = SendPreloadLibs(mLibs);
+      if (!ok) {
+        GMP_PARENT_LOG_DEBUG("%s: Failed to send preload-libs to child process",
+                             __FUNCTION__);
+        return NS_ERROR_FAILURE;
+      }
+      GMP_PARENT_LOG_DEBUG("%s: Sent preload-libs ('%s') to child process",
+                           __FUNCTION__, mLibs.get());
+    }
+#endif
+
+    NS_DispatchToMainThread(new NotifyGMPProcessLoadedTask(OtherPid(), this));
+
+    // Intr call to block initialization on plugin load.
+    if (!SendStartPlugin(mAdapter)) {
+      GMP_PARENT_LOG_DEBUG("%s: Failed to send start to child process",
+                           __FUNCTION__);
+      return NS_ERROR_FAILURE;
+    }
+    GMP_PARENT_LOG_DEBUG("%s: Sent StartPlugin to child process", __FUNCTION__);
+  }
+
+  mState = GMPState::Loaded;
+
+  return NS_OK;
+}
+
+mozilla::ipc::IPCResult GMPParent::RecvPGMPContentChildDestroyed() {
+  --mGMPContentChildCount;
+  if (!IsUsed()) {
+    CloseIfUnused();
+  }
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult GMPParent::RecvFOGData(ByteBuf&& aBuf) {
+  GMP_PARENT_LOG_DEBUG("GMPParent RecvFOGData");
+  glean::FOGData(std::move(aBuf));
+  return IPC_OK();
+}
+
+void GMPParent::CloseIfUnused() {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("%s", __FUNCTION__);
+
+  if ((mDeleteProcessOnlyOnUnload || mState == GMPState::Loaded ||
+       mState == GMPState::Unloading) &&
+      !IsUsed()) {
+    // Ensure all timers are killed.
+    for (uint32_t i = mTimers.Length(); i > 0; i--) {
+      mTimers[i - 1]->Shutdown();
+    }
+
+    // Shutdown GMPStorage. Given that all protocol actors must be shutdown
+    // (!Used() is true), all storage operations should be complete.
+    for (size_t i = mStorage.Length(); i > 0; i--) {
+      mStorage[i - 1]->Shutdown();
+    }
+    Shutdown();
+  }
+}
+
+void GMPParent::CloseActive(bool aDieWhenUnloaded) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("%s: state %u", __FUNCTION__,
+                       uint32_t(GMPState(mState)));
+
+  if (aDieWhenUnloaded) {
+    mDeleteProcessOnlyOnUnload = true;  // don't allow this to go back...
+  }
+  if (mState == GMPState::Loaded) {
+    mState = GMPState::Unloading;
+  }
+  if (mState != GMPState::NotLoaded && IsUsed()) {
+    Unused << SendCloseActive();
+    CloseIfUnused();
+  }
+}
+
+void GMPParent::MarkForDeletion() {
+  mDeleteProcessOnlyOnUnload = true;
+  mIsBlockingDeletion = true;
+}
+
+bool GMPParent::IsMarkedForDeletion() { return mIsBlockingDeletion; }
+
+void GMPParent::Shutdown() {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("%s", __FUNCTION__);
+
+  if (mAbnormalShutdownInProgress) {
+    return;
+  }
+
+  MOZ_ASSERT(!IsUsed());
+  if (mState == GMPState::NotLoaded || mState == GMPState::Closing) {
+    return;
+  }
+
+  RefPtr<GMPParent> self(this);
+  DeleteProcess();
+
+  // XXX Get rid of mDeleteProcessOnlyOnUnload and this code when
+  // Bug 1043671 is fixed
+  if (!mDeleteProcessOnlyOnUnload) {
+    // Destroy ourselves and rise from the fire to save memory
+    mService->ReAddOnGMPThread(self);
+  }  // else we've been asked to die and stay dead
+  MOZ_ASSERT(mState == GMPState::NotLoaded);
+}
+
+class NotifyGMPShutdownTask : public Runnable {
+ public:
+  explicit NotifyGMPShutdownTask(const nsAString& aNodeId)
+      : Runnable("NotifyGMPShutdownTask"), mNodeId(aNodeId) {}
+  NS_IMETHOD Run() override {
+    MOZ_ASSERT(NS_IsMainThread());
+    nsCOMPtr<nsIObserverService> obsService =
+        mozilla::services::GetObserverService();
+    MOZ_ASSERT(obsService);
+    if (obsService) {
+      obsService->NotifyObservers(nullptr, "gmp-shutdown", mNodeId.get());
+    }
+    return NS_OK;
+  }
+  nsString mNodeId;
+};
+
+void GMPParent::ChildTerminated() {
+  RefPtr<GMPParent> self(this);
+  nsCOMPtr<nsISerialEventTarget> gmpEventTarget = GMPEventTarget();
+
+  if (!gmpEventTarget) {
+    // Bug 1163239 - this can happen on shutdown.
+    // PluginTerminated removes the GMP from the GMPService.
+    // On shutdown we can have this case where it is already been
+    // removed so there is no harm in not trying to remove it again.
+    GMP_PARENT_LOG_DEBUG("%s::%s: GMPEventTarget() returned nullptr.",
+                         __CLASS__, __FUNCTION__);
+  } else {
+    gmpEventTarget->Dispatch(
+        NewRunnableMethod<RefPtr<GMPParent>>(
+            "gmp::GeckoMediaPluginServiceParent::PluginTerminated", mService,
+            &GeckoMediaPluginServiceParent::PluginTerminated, self),
+        NS_DISPATCH_NORMAL);
+  }
+}
+
+void GMPParent::DeleteProcess() {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("%s", __FUNCTION__);
+
+  if (mState != GMPState::Closing) {
+    // Don't Close() twice!
+    // Probably remove when bug 1043671 is resolved
+    mState = GMPState::Closing;
+    Close();
+  }
+  mProcess->Delete(NewRunnableMethod("gmp::GMPParent::ChildTerminated", this,
+                                     &GMPParent::ChildTerminated));
+  GMP_PARENT_LOG_DEBUG("%s: Shut down process", __FUNCTION__);
+  mProcess = nullptr;
+
+#if defined(MOZ_WIDGET_ANDROID)
+  if (mState != GMPState::NotLoaded) {
+    nsCOMPtr<nsIEventTarget> launcherThread(GetIPCLauncher());
+    MOZ_ASSERT(launcherThread);
+
+    auto procType = java::GeckoProcessType::GMPLUGIN();
+    auto selector =
+        java::GeckoProcessManager::Selector::New(procType, OtherPid());
+
+    launcherThread->Dispatch(NS_NewRunnableFunction(
+        "GMPParent::DeleteProcess",
+        [selector =
+             java::GeckoProcessManager::Selector::GlobalRef(selector)]() {
+          java::GeckoProcessManager::ShutdownProcess(selector);
+        }));
+  }
+#endif  // defined(MOZ_WIDGET_ANDROID)
+
+  mState = GMPState::NotLoaded;
+
+  nsCOMPtr<nsIRunnable> r =
+      new NotifyGMPShutdownTask(NS_ConvertUTF8toUTF16(mNodeId));
+  mMainThread->Dispatch(r.forget());
+}
+
+GMPState GMPParent::State() const { return mState; }
+
+nsCOMPtr<nsISerialEventTarget> GMPParent::GMPEventTarget() {
+  nsCOMPtr<mozIGeckoMediaPluginService> mps =
+      do_GetService("@mozilla.org/gecko-media-plugin-service;1");
+  MOZ_ASSERT(mps);
+  if (!mps) {
+    return nullptr;
+  }
+  // Note: GeckoMediaPluginService::GetThread() is threadsafe, and returns
+  // nullptr if the GeckoMediaPluginService has started shutdown.
+  nsCOMPtr<nsIThread> gmpThread;
+  mps->GetThread(getter_AddRefs(gmpThread));
+  return gmpThread;
+}
+
+/* static */
+bool GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
+                             const nsACString& aAPI,
+                             const nsTArray<nsCString>& aTags) {
+  for (const nsCString& tag : aTags) {
+    if (!GMPCapability::Supports(aCapabilities, aAPI, tag)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+/* static */
+bool GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
+                             const nsACString& aAPI, const nsCString& aTag) {
+  for (const GMPCapability& capabilities : aCapabilities) {
+    if (!capabilities.mAPIName.Equals(aAPI)) {
+      continue;
+    }
+    for (const nsCString& tag : capabilities.mAPITags) {
+      if (tag.Equals(aTag)) {
+#ifdef XP_WIN
+        // Clearkey on Windows advertises that it can decode in its GMP info
+        // file, but uses Windows Media Foundation to decode. That's not present
+        // on Windows XP, and on some Vista, Windows N, and KN variants without
+        // certain services packs.
+        if (tag.EqualsLiteral(kClearKeyKeySystemName)) {
+          if (capabilities.mAPIName.EqualsLiteral(GMP_API_VIDEO_DECODER)) {
+            if (!WMFDecoderModule::CanCreateMFTDecoder(WMFStreamType::H264)) {
+              continue;
+            }
+          }
+        }
+#endif
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+bool GMPParent::EnsureProcessLoaded() {
+  switch (mState) {
+    case GMPState::NotLoaded:
+      return NS_SUCCEEDED(LoadProcess());
+    case GMPState::Loaded:
+      return true;
+    case GMPState::Unloading:
+    case GMPState::Closing:
+      return false;
+  }
+
+  MOZ_ASSERT_UNREACHABLE("Unhandled GMPState!");
+  return false;
+}
+
+void GMPParent::AddCrashAnnotations() {
+  if (mCrashReporter) {
+    mCrashReporter->AddAnnotation(CrashReporter::Annotation::GMPPlugin, true);
+    mCrashReporter->AddAnnotation(CrashReporter::Annotation::PluginFilename,
+                                  NS_ConvertUTF16toUTF8(mName));
+    mCrashReporter->AddAnnotation(CrashReporter::Annotation::PluginName,
+                                  mDisplayName);
+    mCrashReporter->AddAnnotation(CrashReporter::Annotation::PluginVersion,
+                                  mVersion);
+  }
+}
+
+void GMPParent::GetCrashID(nsString& aResult) {
+  AddCrashAnnotations();
+  GenerateCrashReport(OtherPid(), &aResult);
+}
+
+static void GMPNotifyObservers(const uint32_t aPluginID,
+                               const nsACString& aPluginName,
+                               const nsAString& aPluginDumpID) {
+  nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+  nsCOMPtr<nsIWritablePropertyBag2> propbag =
+      do_CreateInstance("@mozilla.org/hash-property-bag;1");
+  if (obs && propbag) {
+    propbag->SetPropertyAsUint32(u"pluginID"_ns, aPluginID);
+    propbag->SetPropertyAsACString(u"pluginName"_ns, aPluginName);
+    propbag->SetPropertyAsAString(u"pluginDumpID"_ns, aPluginDumpID);
+    obs->NotifyObservers(propbag, "gmp-plugin-crash", nullptr);
+  }
+
+  RefPtr<gmp::GeckoMediaPluginService> service =
+      gmp::GeckoMediaPluginService::GetGeckoMediaPluginService();
+  if (service) {
+    service->RunPluginCrashCallbacks(aPluginID, aPluginName);
+  }
+}
+
+void GMPParent::ActorDestroy(ActorDestroyReason aWhy) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("%s: (%d)", __FUNCTION__, (int)aWhy);
+
+  if (AbnormalShutdown == aWhy) {
+    Telemetry::Accumulate(Telemetry::SUBPROCESS_ABNORMAL_ABORT, "gmplugin"_ns,
+                          1);
+    nsString dumpID;
+    GetCrashID(dumpID);
+    if (dumpID.IsEmpty()) {
+      NS_WARNING("GMP crash without crash report");
+      dumpID = mName;
+      dumpID += '-';
+      AppendUTF8toUTF16(mVersion, dumpID);
+    }
+
+    // NotifyObservers is mainthread-only
+    nsCOMPtr<nsIRunnable> r =
+        WrapRunnableNM(&GMPNotifyObservers, mPluginId, mDisplayName, dumpID);
+    mMainThread->Dispatch(r.forget());
+  }
+
+  // warn us off trying to close again
+  mState = GMPState::Closing;
+  mAbnormalShutdownInProgress = true;
+  CloseActive(false);
+
+  // Normal Shutdown() will delete the process on unwind.
+  if (AbnormalShutdown == aWhy) {
+    RefPtr<GMPParent> self(this);
+    // Must not call Close() again in DeleteProcess(), as we'll recurse
+    // infinitely if we do.
+    MOZ_ASSERT(mState == GMPState::Closing);
+    DeleteProcess();
+    // Note: final destruction will be Dispatched to ourself
+    mService->ReAddOnGMPThread(self);
+  }
+}
+
+PGMPStorageParent* GMPParent::AllocPGMPStorageParent() {
+  GMPStorageParent* p = new GMPStorageParent(mNodeId, this);
+  mStorage.AppendElement(p);  // Addrefs, released in DeallocPGMPStorageParent.
+  return p;
+}
+
+bool GMPParent::DeallocPGMPStorageParent(PGMPStorageParent* aActor) {
+  GMPStorageParent* p = static_cast<GMPStorageParent*>(aActor);
+  p->Shutdown();
+  mStorage.RemoveElement(p);
+  return true;
+}
+
+mozilla::ipc::IPCResult GMPParent::RecvPGMPStorageConstructor(
+    PGMPStorageParent* aActor) {
+  GMPStorageParent* p = (GMPStorageParent*)aActor;
+  if (NS_FAILED(p->Init())) {
+    // TODO: Verify if this is really a good reason to IPC_FAIL.
+    // There might be shutdown edge cases here.
+    return IPC_FAIL(this,
+                    "GMPParent::RecvPGMPStorageConstructor: p->Init() failed.");
+  }
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult GMPParent::RecvPGMPTimerConstructor(
+    PGMPTimerParent* actor) {
+  return IPC_OK();
+}
+
+PGMPTimerParent* GMPParent::AllocPGMPTimerParent() {
+  nsCOMPtr<nsISerialEventTarget> target = GMPEventTarget();
+  GMPTimerParent* p = new GMPTimerParent(target);
+  mTimers.AppendElement(
+      p);  // Released in DeallocPGMPTimerParent, or on shutdown.
+  return p;
+}
+
+bool GMPParent::DeallocPGMPTimerParent(PGMPTimerParent* aActor) {
+  GMPTimerParent* p = static_cast<GMPTimerParent*>(aActor);
+  p->Shutdown();
+  mTimers.RemoveElement(p);
+  return true;
+}
+
+bool ReadInfoField(GMPInfoFileParser& aParser, const nsCString& aKey,
+                   nsACString& aOutValue) {
+  if (!aParser.Contains(aKey) || aParser.Get(aKey).IsEmpty()) {
+    return false;
+  }
+  aOutValue = aParser.Get(aKey);
+  return true;
+}
+
+RefPtr<GenericPromise> GMPParent::ReadGMPMetaData() {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  MOZ_ASSERT(mDirectory, "Plugin directory cannot be NULL!");
+  MOZ_ASSERT(!mName.IsEmpty(), "Plugin mName cannot be empty!");
+
+  nsCOMPtr<nsIFile> infoFile;
+  nsresult rv = mDirectory->Clone(getter_AddRefs(infoFile));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  infoFile->AppendRelativePath(mName + u".info"_ns);
+
+  if (FileExists(infoFile)) {
+    return ReadGMPInfoFile(infoFile);
+  }
+
+  // Maybe this is the Widevine adapted plugin?
+  nsCOMPtr<nsIFile> manifestFile;
+  rv = mDirectory->Clone(getter_AddRefs(manifestFile));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  manifestFile->AppendRelativePath(u"manifest.json"_ns);
+  return ReadChromiumManifestFile(manifestFile);
+}
+
+#if defined(XP_LINUX)
+static void ApplyGlibcWorkaround(nsCString& aLibs) {
+  // These glibc libraries were merged into libc.so.6 as of glibc
+  // 2.34; they now exist only as stub libraries for compatibility and
+  // newly linked code won't depend on them, so we need to ensure
+  // they're loaded for plugins that may have been linked against a
+  // different version of glibc.  (See also bug 1725828.)
+  if (!aLibs.IsEmpty()) {
+    aLibs.AppendLiteral(", ");
+  }
+  aLibs.AppendLiteral("libdl.so.2, libpthread.so.0, librt.so.1");
+}
+#endif
+
+#if defined(XP_WIN)
+static void ApplyOleaut32(nsCString& aLibs) {
+  // In the libwebrtc update in bug 1766646 an include of comdef.h for using
+  // _bstr_t was introduced. This resulted in a dependency on comsupp.lib which
+  // contains a `_variant_t vtMissing` that would get cleared in an exit
+  // handler. VariantClear is defined in oleaut32.dll, and so we'd try to load
+  // oleaut32.dll on exit but get denied by the sandbox.
+  // Note that we had includes of comdef.h before bug 1766646 but it is the use
+  // of _bstr_t that triggers the vtMissing exit handler.
+  // See bug 1788592 for details.
+  if (!aLibs.IsEmpty()) {
+    aLibs.AppendLiteral(", ");
+  }
+  aLibs.AppendLiteral("oleaut32.dll");
+}
+#endif
+
+RefPtr<GenericPromise> GMPParent::ReadGMPInfoFile(nsIFile* aFile) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMPInfoFileParser parser;
+  if (!parser.Init(aFile)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  nsAutoCString apis;
+  if (!ReadInfoField(parser, "name"_ns, mDisplayName) ||
+      !ReadInfoField(parser, "description"_ns, mDescription) ||
+      !ReadInfoField(parser, "version"_ns, mVersion) ||
+      !ReadInfoField(parser, "apis"_ns, apis)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+#if defined(XP_WIN) || defined(XP_LINUX)
+  // "Libraries" field is optional.
+  ReadInfoField(parser, "libraries"_ns, mLibs);
+#endif
+
+  UpdatePluginType();
+
+#ifdef XP_LINUX
+  // The glibc workaround (see above) isn't needed for clearkey
+  // because it's built along with the browser.
+  if (mPluginType != GMPPluginType::Clearkey) {
+    ApplyGlibcWorkaround(mLibs);
+  }
+#endif
+
+#ifdef XP_WIN
+  ApplyOleaut32(mLibs);
+#endif
+
+  nsTArray<nsCString> apiTokens;
+  SplitAt(", ", apis, apiTokens);
+  for (nsCString api : apiTokens) {
+    int32_t tagsStart = api.FindChar('[');
+    if (tagsStart == 0) {
+      // Not allowed to be the first character.
+      // API name must be at least one character.
+      continue;
+    }
+
+    GMPCapability cap;
+    if (tagsStart == -1) {
+      // No tags.
+      cap.mAPIName.Assign(api);
+    } else {
+      auto tagsEnd = api.FindChar(']');
+      if (tagsEnd == -1 || tagsEnd < tagsStart) {
+        // Invalid syntax, skip whole capability.
+        continue;
+      }
+
+      cap.mAPIName.Assign(Substring(api, 0, tagsStart));
+
+      if ((tagsEnd - tagsStart) > 1) {
+        const nsDependentCSubstring ts(
+            Substring(api, tagsStart + 1, tagsEnd - tagsStart - 1));
+        nsTArray<nsCString> tagTokens;
+        SplitAt(":", ts, tagTokens);
+        for (nsCString tag : tagTokens) {
+          cap.mAPITags.AppendElement(tag);
+        }
+      }
+    }
+
+    mCapabilities.AppendElement(std::move(cap));
+  }
+
+  if (mCapabilities.IsEmpty()) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  return GenericPromise::CreateAndResolve(true, __func__);
+}
+
+RefPtr<GenericPromise> GMPParent::ReadChromiumManifestFile(nsIFile* aFile) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  nsAutoCString json;
+  if (!ReadIntoString(aFile, json, 5 * 1024)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  // DOM JSON parsing needs to run on the main thread.
+  return InvokeAsync(mMainThread, this, __func__,
+                     &GMPParent::ParseChromiumManifest,
+                     NS_ConvertUTF8toUTF16(json));
+}
+
+static bool IsCDMAPISupported(
+    const mozilla::dom::WidevineCDMManifest& aManifest) {
+  nsresult ignored;  // Note: ToInteger returns 0 on failure.
+  int32_t moduleVersion = aManifest.mX_cdm_module_versions.ToInteger(&ignored);
+  int32_t interfaceVersion =
+      aManifest.mX_cdm_interface_versions.ToInteger(&ignored);
+  int32_t hostVersion = aManifest.mX_cdm_host_versions.ToInteger(&ignored);
+  return ChromiumCDMAdapter::Supports(moduleVersion, interfaceVersion,
+                                      hostVersion);
+}
+
+RefPtr<GenericPromise> GMPParent::ParseChromiumManifest(
+    const nsAString& aJSON) {
+  GMP_PARENT_LOG_DEBUG("%s: for '%s'", __FUNCTION__,
+                       NS_LossyConvertUTF16toASCII(aJSON).get());
+
+  MOZ_ASSERT(NS_IsMainThread());
+  mozilla::dom::WidevineCDMManifest m;
+  if (!m.Init(aJSON)) {
+    GMP_PARENT_LOG_DEBUG("%s: Failed to initialize json parser, failing.",
+                         __FUNCTION__);
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  if (!IsCDMAPISupported(m)) {
+    GMP_PARENT_LOG_DEBUG("%s: CDM API not supported, failing.", __FUNCTION__);
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  CopyUTF16toUTF8(m.mName, mDisplayName);
+  CopyUTF16toUTF8(m.mDescription, mDescription);
+  CopyUTF16toUTF8(m.mVersion, mVersion);
+
+#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
+  if (!mozilla::SandboxInfo::Get().CanSandboxMedia()) {
+    nsPrintfCString msg(
+        "GMPParent::ParseChromiumManifest: Plugin \"%s\" is an EME CDM"
+        " but this system can't sandbox it; not loading.",
+        mDisplayName.get());
+    printf_stderr("%s\n", msg.get());
+    GMP_PARENT_LOG_DEBUG("%s", msg.get());
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+#endif
+
+  UpdatePluginType();
+
+  GMPCapability video;
+
+  // We hard code a few of the settings because they can't be stored in the
+  // widevine manifest without making our API different to widevine's.
+  switch (mPluginType) {
+    case GMPPluginType::Clearkey:
+      video.mAPITags.AppendElement(nsCString{kClearKeyKeySystemName});
+      video.mAPITags.AppendElement(
+          nsCString{kClearKeyWithProtectionQueryKeySystemName});
+#if XP_WIN
+      mLibs = nsLiteralCString(
+          "dxva2.dll, evr.dll, freebl3.dll, mfh264dec.dll, mfplat.dll, "
+          "msmpeg2vdec.dll, nss3.dll, softokn3.dll");
+#elif XP_LINUX
+      mLibs = "libfreeblpriv3.so, libsoftokn3.so"_ns;
+#endif
+      break;
+    case GMPPluginType::Widevine:
+      video.mAPITags.AppendElement(nsCString{kWidevineKeySystemName});
+#if XP_WIN
+      // psapi.dll added for GetMappedFileNameW, which could possibly be avoided
+      // in future versions, see bug 1383611 for details.
+      mLibs = "dxva2.dll, ole32.dll, psapi.dll, winmm.dll"_ns;
+#endif
+      break;
+    case GMPPluginType::Fake:
+      // The fake CDM just exposes a key system with id "fake".
+      video.mAPITags.AppendElement(nsCString{"fake"});
+#if XP_WIN
+      mLibs = "dxva2.dll, ole32.dll"_ns;
+#endif
+      break;
+    default:
+      GMP_PARENT_LOG_DEBUG("%s: Unrecognized key system: %s, failing.",
+                           __FUNCTION__, mDisplayName.get());
+      return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+#ifdef XP_LINUX
+  ApplyGlibcWorkaround(mLibs);
+#endif
+
+#ifdef XP_WIN
+  ApplyOleaut32(mLibs);
+#endif
+
+  nsCString codecsString = NS_ConvertUTF16toUTF8(m.mX_cdm_codecs);
+  nsTArray<nsCString> codecs;
+  SplitAt(",", codecsString, codecs);
+
+  // Parse the codec strings in the manifest and map them to strings used
+  // internally by Gecko for capability recognition.
+  //
+  // Google's code to parse manifests can be used as a reference for strings
+  // the manifest may contain
+  // https://source.chromium.org/chromium/chromium/src/+/master:components/cdm/common/cdm_manifest.cc;l=74;drc=775880ced8a989191281e93854c7f2201f25068f
+  //
+  // Gecko's internal strings can be found at
+  // https://searchfox.org/mozilla-central/rev/ea63a0888d406fae720cf24f4727d87569a8cab5/dom/media/eme/MediaKeySystemAccess.cpp#149-155
+  for (const nsCString& chromiumCodec : codecs) {
+    nsCString codec;
+    if (chromiumCodec.EqualsASCII("vp8")) {
+      codec = "vp8"_ns;
+    } else if (chromiumCodec.EqualsASCII("vp9.0") ||  // Legacy string.
+               chromiumCodec.EqualsASCII("vp09")) {
+      codec = "vp9"_ns;
+    } else if (chromiumCodec.EqualsASCII("avc1")) {
+      codec = "h264"_ns;
+    } else if (chromiumCodec.EqualsASCII("av01")) {
+      codec = "av1"_ns;
+    } else {
+      GMP_PARENT_LOG_DEBUG("%s: Unrecognized codec: %s.", __FUNCTION__,
+                           chromiumCodec.get());
+      MOZ_ASSERT_UNREACHABLE(
+          "Unhandled codec string! Need to add it to the parser.");
+      continue;
+    }
+
+    video.mAPITags.AppendElement(codec);
+  }
+
+  video.mAPIName = nsLiteralCString(CHROMIUM_CDM_API);
+  mAdapter = u"chromium"_ns;
+
+  mCapabilities.AppendElement(std::move(video));
+
+  GMP_PARENT_LOG_DEBUG("%s: Successfully parsed manifest.", __FUNCTION__);
+  return GenericPromise::CreateAndResolve(true, __func__);
+}
+
+bool GMPParent::CanBeSharedCrossNodeIds() const {
+  return mNodeId.IsEmpty() &&
+         // XXX bug 1159300 hack -- maybe remove after openh264 1.4
+         // We don't want to use CDM decoders for non-encrypted playback
+         // just yet; especially not for WebRTC. Don't allow CDMs to be used
+         // without a node ID.
+         !mCanDecrypt;
+}
+
+bool GMPParent::CanBeUsedFrom(const nsACString& aNodeId) const {
+  return mNodeId == aNodeId;
+}
+
+void GMPParent::SetNodeId(const nsACString& aNodeId) {
+  MOZ_ASSERT(!aNodeId.IsEmpty());
+  mNodeId = aNodeId;
+}
+
+void GMPParent::UpdatePluginType() {
+  if (mDisplayName.EqualsLiteral("WidevineCdm")) {
+    mPluginType = GMPPluginType::Widevine;
+  } else if (mDisplayName.EqualsLiteral("gmpopenh264")) {
+    mPluginType = GMPPluginType::OpenH264;
+  } else if (mDisplayName.EqualsLiteral("clearkey")) {
+    mPluginType = GMPPluginType::Clearkey;
+  } else if (mDisplayName.EqualsLiteral("fake")) {
+    mPluginType = GMPPluginType::Fake;
+  } else {
+    mPluginType = GMPPluginType::Unknown;
+  }
+}
+
+const nsCString& GMPParent::GetDisplayName() const { return mDisplayName; }
+
+const nsCString& GMPParent::GetVersion() const { return mVersion; }
+
+uint32_t GMPParent::GetPluginId() const { return mPluginId; }
+
+void GMPParent::ResolveGetContentParentPromises() {
+  nsTArray<UniquePtr<MozPromiseHolder<GetGMPContentParentPromise>>> promises =
+      std::move(mGetContentParentPromises);
+  MOZ_ASSERT(mGetContentParentPromises.IsEmpty());
+  RefPtr<GMPContentParent::CloseBlocker> blocker(
+      new GMPContentParent::CloseBlocker(mGMPContentParent));
+  for (auto& holder : promises) {
+    holder->Resolve(blocker, __func__);
+  }
+}
+
+bool GMPParent::OpenPGMPContent() {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  MOZ_ASSERT(!mGMPContentParent);
+
+  Endpoint<PGMPContentParent> parent;
+  Endpoint<PGMPContentChild> child;
+  if (NS_WARN_IF(NS_FAILED(PGMPContent::CreateEndpoints(
+          base::GetCurrentProcId(), OtherPid(), &parent, &child)))) {
+    return false;
+  }
+
+  mGMPContentParent = new GMPContentParent(this);
+
+  if (!parent.Bind(mGMPContentParent)) {
+    return false;
+  }
+
+  if (!SendInitGMPContentChild(std::move(child))) {
+    return false;
+  }
+
+  ResolveGetContentParentPromises();
+
+  return true;
+}
+
+void GMPParent::RejectGetContentParentPromises() {
+  nsTArray<UniquePtr<MozPromiseHolder<GetGMPContentParentPromise>>> promises =
+      std::move(mGetContentParentPromises);
+  MOZ_ASSERT(mGetContentParentPromises.IsEmpty());
+  for (auto& holder : promises) {
+    holder->Reject(NS_ERROR_FAILURE, __func__);
+  }
+}
+
+void GMPParent::GetGMPContentParent(
+    UniquePtr<MozPromiseHolder<GetGMPContentParentPromise>>&& aPromiseHolder) {
+  MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
+  GMP_PARENT_LOG_DEBUG("%s %p", __FUNCTION__, this);
+
+  if (mGMPContentParent) {
+    RefPtr<GMPContentParent::CloseBlocker> blocker(
+        new GMPContentParent::CloseBlocker(mGMPContentParent));
+    aPromiseHolder->Resolve(blocker, __func__);
+  } else {
+    mGetContentParentPromises.AppendElement(std::move(aPromiseHolder));
+    // If we don't have a GMPContentParent and we try to get one for the first
+    // time (mGetContentParentPromises.Length() == 1) then call
+    // PGMPContent::Open. If more calls to GetGMPContentParent happen before
+    // mGMPContentParent has been set then we should just store them, so that
+    // they get called when we set mGMPContentParent as a result of the
+    // PGMPContent::Open call.
+    if (mGetContentParentPromises.Length() == 1) {
+      if (!EnsureProcessLoaded() || !OpenPGMPContent()) {
+        RejectGetContentParentPromises();
+        return;
+      }
+      // We want to increment this as soon as possible, to avoid that we'd try
+      // to shut down the GMP process while we're still trying to get a
+      // PGMPContentParent actor.
+      ++mGMPContentChildCount;
+    }
+  }
+}
+
+already_AddRefed<GMPContentParent> GMPParent::ForgetGMPContentParent() {
+  MOZ_ASSERT(mGetContentParentPromises.IsEmpty());
+  return mGMPContentParent.forget();
+}
+
+bool GMPParent::EnsureProcessLoaded(base::ProcessId* aID) {
+  if (!EnsureProcessLoaded()) {
+    return false;
+  }
+  *aID = OtherPid();
+  return true;
+}
+
+void GMPParent::IncrementGMPContentChildCount() { ++mGMPContentChildCount; }
+
+nsString GMPParent::GetPluginBaseName() const { return u"gmp-"_ns + mName; }
+
+#if defined(XP_MACOSX) && defined(__aarch64__)
+void GMPParent::PreTranslateBins() {
+  nsCOMPtr<nsIRunnable> event = mozilla::NewRunnableMethod(
+      "RosettaTranslation", this, &GMPParent::PreTranslateBinsWorker);
+
+  DebugOnly<nsresult> rv =
+      NS_DispatchBackgroundTask(event.forget(), NS_DISPATCH_EVENT_MAY_BLOCK);
+
+  MOZ_ASSERT(NS_SUCCEEDED(rv));
+}
+
+void GMPParent::PreTranslateBinsWorker() {
+  int rv = nsMacUtilsImpl::PreTranslateXUL();
+  GMP_PARENT_LOG_DEBUG("%s: XUL translation result: %d", __FUNCTION__, rv);
+
+  rv = nsMacUtilsImpl::PreTranslateBinary(mPluginFilePath);
+  GMP_PARENT_LOG_DEBUG("%s: %s translation result: %d", __FUNCTION__,
+                       mPluginFilePath.get(), rv);
+}
+#endif
+
+}  // namespace mozilla::gmp
+
+#undef GMP_PARENT_LOG_DEBUG
+#undef __CLASS__