Hook up WebRTC logging extension API to the underlying functionality.

content/public/renderer/webrtc_log_message_delegate.h

Index: content/public/renderer/webrtc_log_message_delegate.h
diff --git a/content/public/renderer/webrtc_log_message_delegate.h b/content/public/renderer/webrtc_log_message_delegate.h
index 44695670db6edca4c51b13584608a2bacec28f05..cb324df8cb214b149b37e9578dcc853bbf0333c3 100644
--- a/content/public/renderer/webrtc_log_message_delegate.h
+++ b/content/public/renderer/webrtc_log_message_delegate.h
@@ -17,11 +17,6 @@ namespace content {
 // the ordinary logging stream) that will be used for diagnostic purposes.
 class WebRtcLogMessageDelegate {
  public:
-  // Tells the handler to initialize WebRTC logging. |app_session_id| is set
-  // by the Javascript application. |app_url| is the Javascript application URL.
-  virtual void InitLogging(const std::string& app_session_id,
-                           const std::string& app_url) = 0;
-
   // Pass a diagnostic WebRTC log message.
   virtual void LogMessage(const std::string& message) = 0;
 
@@ -33,6 +28,9 @@ class WebRtcLogMessageDelegate {
 CONTENT_EXPORT void InitWebRtcLoggingDelegate(
     WebRtcLogMessageDelegate* delegate);
 
+// Must be called on IO thread.
+CONTENT_EXPORT void InitWebRtcLogging();
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_MEDIA_WEBRTC_LOG_MESSAGE_DELEGATE_H_