Change WebRTC log callback registration in browser process.

content/public/browser/render_process_host.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_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 208 matching lines @@
   virtual void DisableAudioDebugRecordings() = 0;
 
   virtual void EnableEventLogRecordings(const base::FilePath& file) = 0;
   virtual void DisableEventLogRecordings() = 0;
 
   // When set, |callback| receives log messages regarding, for example, media
   // devices (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;
+  virtual void ClearWebRtcLogMessageCallback() = 0;
 
   typedef base::Callback<void(scoped_ptr<uint8_t[]> packet_header,
                               size_t header_length,
                               size_t packet_length,
                               bool incoming)> WebRtcRtpPacketCallback;
 
   typedef base::Callback<void(bool incoming, bool outgoing)>
       WebRtcStopRtpDumpCallback;
 
   // Starts passing RTP packets to |packet_callback| and returns the callback
@@ skipping 114 matching lines @@
   static void SetMaxRendererProcessCount(size_t count);
 
   // Returns the current maximum number of renderer process hosts kept by the
   // content module.
   static size_t GetMaxRendererProcessCount();
 };
 
 }  // namespace content.
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_