Implement browser-side logging to WebRtc log

content/public/browser/render_process_host.h

Index: content/public/browser/render_process_host.h
diff --git a/content/public/browser/render_process_host.h b/content/public/browser/render_process_host.h
index 436108a398bd7eef071a9c1001d6ea0d2d75804d..a873f13eba0c939826df49380e8ae39c4a25e0e7 100644
--- a/content/public/browser/render_process_host.h
+++ b/content/public/browser/render_process_host.h
@@ -215,6 +215,12 @@ class CONTENT_EXPORT RenderProcessHost : public IPC::Sender,
 #if defined(ENABLE_WEBRTC)
   virtual void EnableAecDump(const base::FilePath& file) = 0;
   virtual void DisableAecDump() = 0;
+
+  // When set, |callback| receives log messages regarding media devices

[Henrik Grunell, 2014/01/22 07:05:24]

Maybe add "for example" before "media devices" to be more generic and future
proof.

[vrk (LEFT CHROMIUM), 2014/01/23 21:46:32]

Done.

+  // (webcams, mics, etc) that were initially requested in the render process
+  // associated with this RenderProcessHost.
+  virtual void SetWebRtcLogMessageCallback(
+      base::Callback<void(const std::string&)> callback) = 0;
 #endif
 
   // Static management functions -----------------------------------------------