Add support for backgrounding processes on the Mac

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 17e95ef2bc2285555fe30e2ce15157a047eb9c3a..743809353d5adb18c417b4f3e5875dbf10273d56 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -966,6 +966,10 @@ const char kEnableSpeechDispatcher[] = "enable-speech-dispatcher";
 // accelerated compositing is disabled. See http://crbug.com/122430.
 const char kDisableCoreAnimationPlugins[] =
     "disable-core-animation-plugins";
+// Allow the browser to background renderer processes on the Mac. See
+// http://crbug.com/460102 .
+const char kBackgroundMacRendererProcesses[] =
+    "background-mac-renderer-processes";
 #endif
 
 #if defined(OS_WIN)