AndroidVideoCapturer getSupportedFormats(): Change interface from JSON string to List/vector

webrtc/api/androidvideocapturer.h

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 16 matching lines @@
   virtual ~AndroidVideoCapturerDelegate() {}
   // Start capturing. The implementation of the delegate must call
   // AndroidVideoCapturer::OnCapturerStarted with the result of this request.
   virtual void Start(int width, int height, int framerate,
                      AndroidVideoCapturer* capturer) = 0;
 
   // Stops capturing.
   // The delegate may not call into AndroidVideoCapturer after this call.
   virtual void Stop() = 0;
 
-  // Must returns a JSON string "{{width=xxx, height=xxx, framerate = xxx}}"
-  virtual std::string GetSupportedFormats() = 0;
+  virtual std::vector<cricket::VideoFormat> GetSupportedFormats() = 0;
 };
 
 // Android implementation of cricket::VideoCapturer for use with WebRtc
 // PeerConnection.
 class AndroidVideoCapturer : public cricket::VideoCapturer {
  public:
   explicit AndroidVideoCapturer(
       const rtc::scoped_refptr<AndroidVideoCapturerDelegate>& delegate);
   virtual ~AndroidVideoCapturer();
 
@@ skipping 34 matching lines @@
 
   class FrameFactory;
   FrameFactory* frame_factory_;  // Owned by cricket::VideoCapturer.
 
   cricket::CaptureState current_state_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_ANDROIDVIDEOCAPTURER_H_