Introduce struct MediaConfig, with construction-time settings.

talk/app/webrtc/fakemediacontroller.h

Index: talk/app/webrtc/fakemediacontroller.h
diff --git a/talk/app/webrtc/fakemediacontroller.h b/talk/app/webrtc/fakemediacontroller.h
index 5bf3e5fcf8556b914436c948d887468241ae2fae..028ad1718005a5f65287d80e2797297c88c2cb17 100644
--- a/talk/app/webrtc/fakemediacontroller.h
+++ b/talk/app/webrtc/fakemediacontroller.h
@@ -46,6 +46,10 @@ class FakeMediaController : public webrtc::MediaControllerInterface {
   cricket::ChannelManager* channel_manager() const override {
     return channel_manager_;
   }
+  const webrtc::MediaConfig* config() const override {

[pthatcher1, 2016/02/05 17:11:30]

I'd say make it a reference.

+    static const webrtc::MediaConfig media_config = webrtc::MediaConfig();
+    return &media_config;
+  }
 
  private:
   cricket::ChannelManager* channel_manager_;