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..c2567e968ca5f742f6510b07f245125b3c03c308 100644
--- a/talk/app/webrtc/fakemediacontroller.h
+++ b/talk/app/webrtc/fakemediacontroller.h
@@ -30,6 +30,7 @@
 
 #include "talk/app/webrtc/mediacontroller.h"
 #include "webrtc/base/checks.h"
+#include "webrtc/media/base/mediachannel.h"
 
 namespace cricket {
 
@@ -46,6 +47,10 @@ class FakeMediaController : public webrtc::MediaControllerInterface {
   cricket::ChannelManager* channel_manager() const override {
     return channel_manager_;
   }
+  const MediaConfig& config() const override {
+    static const MediaConfig media_config = MediaConfig();

[perkj_webrtc, 2016/02/10 10:41:26]

remove static. make  media_config_ a const member. 

const MediaConfig media_config = MediaConfig();

[nisse-webrtc, 2016/02/10 13:42:01]

Done.

+    return media_config;
+  }
 
  private:
   cricket::ChannelManager* channel_manager_;