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

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index faed5fc5c27350c10c45ba7767c8ff593cf45967..6acb38ba7551aaa7d7e69d036c9a3d4bab74bbf8 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -224,12 +224,21 @@ media::AudioManager* BrowserMainLoop::GetAudioManager() {
 media_stream::MediaStreamManager* BrowserMainLoop::GetMediaStreamManager() {
   return g_current_browser_main_loop->media_stream_manager_.get();
 }
+
+// static
+void BrowserMainLoop::UseFakeMediaStreamDevice() {
+  // Configure the manager once it gets created.
+  BrowserMainLoop::use_fake_media_stream_device_ = true;

[jam, 2012/09/04 15:18:14]

nit: BrowserMainLoop:: is unnecessary

[phoglund_chromium, 2012/09/05 11:43:54]

Done.

+}
+
+bool BrowserMainLoop::use_fake_media_stream_device_ = false;
+
 // BrowserMainLoop construction / destruction =============================
 
 BrowserMainLoop::BrowserMainLoop(const content::MainFunctionParams& parameters)
     : parameters_(parameters),
       parsed_command_line_(parameters.command_line),
-      result_code_(content::RESULT_CODE_NORMAL_EXIT) {
+      result_code_(content::RESULT_CODE_NORMAL_EXIT){
   DCHECK(!g_current_browser_main_loop);
   g_current_browser_main_loop = this;
 }
@@ -468,6 +477,9 @@ void BrowserMainLoop::CreateThreads() {
 void BrowserMainLoop::RunMainMessageLoopParts() {
   TRACE_EVENT_BEGIN_ETW("BrowserMain:MESSAGE_LOOP", 0, "");
 
+  if (use_fake_media_stream_device_)

[jam, 2012/09/04 15:18:14]

actually, it seems that this static better belongs in MediaStreamManager?

[phoglund_chromium, 2012/09/05 11:43:54]

Good point, I'll move it.

+    media_stream_manager_->UseFakeDevice();
+
   bool ran_main_loop = false;
   if (parts_.get())
     ran_main_loop = parts_->MainMessageLoopRun(&result_code_);