From 292f3191dc63394cac1dbe9b31843ca3bd287812 Mon Sep 17 00:00:00 2001
From: serge-sans-paille <sguelton@mozilla.com>
Date: Fri, 22 Sep 2023 10:06:44 +0200
Subject: [PATCH] Remove <iostream> from the common.h header

<iostream> embeds a global constructor (to initialize std::cout and
such), typically `static ios_base::Init __ioinit;` in libstdc++).

This header is not directly necessary in the common header and has a
small impact on every compilation unit that includes it.

As an example, removing that header dependency in turns suppresses 33 global
constructors from the firefox core library libxul.
---
diff --git a/toolkit/components/protobuf/src/google/protobuf/message_lite.cc b/toolkit/components/protobuf/src/google/protobuf/message_lite.cc
index da66c1965b4c4..a1790b167fdbd 100644
--- a/toolkit/components/protobuf/src/google/protobuf/message_lite.cc
+++ b/toolkit/components/protobuf/src/google/protobuf/message_lite.cc
@@ -38,6 +38,7 @@
 #include <climits>
 #include <cstdint>
 #include <string>
+#include <istream>
 
 #include <google/protobuf/stubs/logging.h>
 #include <google/protobuf/stubs/common.h>
diff --git a/toolkit/components/protobuf/src/google/protobuf/stubs/common.h b/toolkit/components/protobuf/src/google/protobuf/stubs/common.h
index ebb1ca0e677cc..58739784db804 100644
--- a/toolkit/components/protobuf/src/google/protobuf/stubs/common.h
+++ b/toolkit/components/protobuf/src/google/protobuf/stubs/common.h
@@ -36,7 +36,6 @@
 #define GOOGLE_PROTOBUF_COMMON_H__
 
 #include <algorithm>
-#include <iostream>
 #include <map>
 #include <memory>
 #include <set>