Add retail logging for WebRTC IP permission debugability

content/renderer/media/webrtc/peer_connection_dependency_factory.cc

 // Copyright 2014 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.
 
 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/location.h"
@@ skipping 459 matching lines @@
       port_config.enable_multiple_routes) {
     RenderFrameImpl* render_frame = RenderFrameImpl::FromWebFrame(web_frame);
     if (render_frame) {
       media_permission = render_frame->CreateMediaPermissionProxy(
           chrome_worker_thread_.task_runner());
       DCHECK(media_permission);
     }
   }
 
   if (!enforce_preferences) {
+    VLOG(3) << "WebRTC routing preferences will not be enforced";
     port_config.enable_multiple_routes = true;
     port_config.enable_nonproxied_udp = true;
+  } else {
+    VLOG(3) << "WebRTC routing preferences: multiple_routes: "
+            << port_config.enable_multiple_routes
+            << ", nonproxied_udp: " << port_config.enable_nonproxied_udp;
   }
 
   const GURL& requesting_origin =
       GURL(web_frame->document().url().spec()).GetOrigin();
 
   scoped_refptr<P2PPortAllocatorFactory> pa_factory =
       new P2PPortAllocatorFactory(
           media_permission.Pass(), p2p_socket_dispatcher_, network_manager_,
           socket_factory_.get(), port_config, requesting_origin,
           chrome_worker_thread_.task_runner());
@@ skipping 257 matching lines @@
 }
 
 void PeerConnectionDependencyFactory::EnsureWebRtcAudioDeviceImpl() {
   if (audio_device_.get())
     return;
 
   audio_device_ = new WebRtcAudioDeviceImpl();
 }
 
 }  // namespace content