Change WebRTC log callback registration in browser process.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 5ba1bc8e865bd5949b56f6b3d3068da843b266b6..0f0df3b78d4bc1a28973698950e896fc401c5cc6 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1881,10 +1881,8 @@ void RenderProcessHostImpl::Cleanup() {
   }
 
 #if defined(ENABLE_WEBRTC)
-  if (is_initialized_) {
-    BrowserMainLoop::GetInstance()->media_stream_manager()->
-        UnregisterNativeLogCallback(GetID());
-  }
+  if (is_initialized_)
+    ClearWebRtcLogMessageCallback();
 #endif
 
   // When there are no other owners of this object, we can delete ourselves.
@@ -2061,6 +2059,14 @@ void RenderProcessHostImpl::SetWebRtcLogMessageCallback(
 #endif
 }
 
+void RenderProcessHostImpl::ClearWebRtcLogMessageCallback() {
+#if defined(ENABLE_WEBRTC)
+  BrowserMainLoop::GetInstance()
+      ->media_stream_manager()
+      ->UnregisterNativeLogCallback(GetID());
+#endif
+}
+
 RenderProcessHostImpl::WebRtcStopRtpDumpCallback
 RenderProcessHostImpl::StartRtpDump(
     bool incoming,