Makes it possible to run content_browsertests with --as-browser and fake WebRTC devices.

content/browser/browser_main_loop.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 #define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/browser_process_sub_thread.h"
@@ skipping 66 matching lines @@
   // Performs the shutdown sequence, starting with PostMainMessageLoopRun
   // through stopping threads to PostDestroyThreads.
   void ShutdownThreadsAndCleanUp();
 
   int GetResultCode() const { return result_code_; }
 
   // Can be called on any thread.
   static media::AudioManager* GetAudioManager();
   static media_stream::MediaStreamManager* GetMediaStreamManager();
 
+  // Should be called before RunMainMessageLoopParts (on the thread that calls
+  // that method).
+  static void UseFakeMediaStreamDevice();
  private:
   // For ShutdownThreadsAndCleanUp.
   friend class BrowserShutdownImpl;
 
   void InitializeMainThread();
 
   // Called right after the browser threads have been started.
   void BrowserThreadsStarted();
 
   void MainMessageLoopRun();
@@ skipping 34 matching lines @@
 
   // Members initialized in |RunMainMessageLoopParts()| ------------------------
   scoped_ptr<BrowserProcessSubThread> db_thread_;
   scoped_ptr<WebKitThread> webkit_thread_;
   scoped_ptr<BrowserProcessSubThread> file_user_blocking_thread_;
   scoped_ptr<BrowserProcessSubThread> file_thread_;
   scoped_ptr<BrowserProcessSubThread> process_launcher_thread_;
   scoped_ptr<BrowserProcessSubThread> cache_thread_;
   scoped_ptr<BrowserProcessSubThread> io_thread_;
 
+  // Static members.
+  static bool use_fake_media_stream_device_;
+
 #if defined(OS_WIN)
   ui::ScopedOleInitializer ole_initializer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_