Cast: Add JS API to get raw events logs from cast extension.

chrome/renderer/extensions/cast_streaming_native_handler.h

Index: chrome/renderer/extensions/cast_streaming_native_handler.h
diff --git a/chrome/renderer/extensions/cast_streaming_native_handler.h b/chrome/renderer/extensions/cast_streaming_native_handler.h
index 9f41a921dc848d2cd86635da1778e5508546fc75..52e1b97d1881948b52d284328811b3f92f506c3b 100644
--- a/chrome/renderer/extensions/cast_streaming_native_handler.h
+++ b/chrome/renderer/extensions/cast_streaming_native_handler.h
@@ -48,6 +48,10 @@ class CastStreamingNativeHandler : public ObjectBackedNativeHandler {
   void StopCastUdpTransport(
       const v8::FunctionCallbackInfo<v8::Value>& args);
 
+  void ToggleLogging(const v8::FunctionCallbackInfo<v8::Value>& args);
+  void GetRawEvents(const v8::FunctionCallbackInfo<v8::Value>& args);
+  void GetStats(const v8::FunctionCallbackInfo<v8::Value>& args);
+
   // Helper method to call the v8 callback function after a session is
   // created.
   void CallCreateCallback(scoped_ptr<CastRtpStream> stream1,
@@ -58,6 +62,9 @@ class CastStreamingNativeHandler : public ObjectBackedNativeHandler {
   void CallStopCallback(int stream_id);
   void CallErrorCallback(int stream_id, const std::string& message);
 
+  void CallGetRawEventsCallback(int transport_id,
+                                scoped_ptr<std::string> raw_events);
+
   // Gets the RTP stream or UDP transport indexed by an ID.
   // If not found, returns NULL and throws a V8 exception.
   CastRtpStream* GetRtpStreamOrThrow(int stream_id) const;
@@ -75,6 +82,11 @@ class CastStreamingNativeHandler : public ObjectBackedNativeHandler {
 
   extensions::ScopedPersistent<v8::Function> create_callback_;
 
+  typedef std::map<int,
+                   linked_ptr<extensions::ScopedPersistent<v8::Function> > >
+      RtpStreamCallbackMap;
+  RtpStreamCallbackMap get_raw_events_callbacks_;
+
   DISALLOW_COPY_AND_ASSIGN(CastStreamingNativeHandler);
 };