Make MediaStreamVideoTrack::GetSettings return the track's frame rate.

content/renderer/media/media_stream_video_track.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_TRACK_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_TRACK_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 95 matching lines @@
     DCHECK(!IsOldVideoConstraints());
     return min_frame_rate_;
   }
   const VideoTrackAdapterSettings& adapter_settings() const {
     DCHECK(!IsOldVideoConstraints());
     return *adapter_settings_;
   }
 
   // Setting information about the track size.
   // Called from MediaStreamVideoSource at track initialization.
-  void SetTargetSize(int width, int height) {
+  void SetTargetSizeAndFrameRate(int width, int height, double frame_rate) {
     width_ = width;
     height_ = height;
+    frame_rate_ = frame_rate;
   }
 
  private:
   // MediaStreamVideoSink is a friend to allow it to call AddSink() and
   // RemoveSink().
   friend class MediaStreamVideoSink;
   FRIEND_TEST_ALL_PREFIXES(MediaStreamRemoteVideoSourceTest, StartTrack);
   FRIEND_TEST_ALL_PREFIXES(MediaStreamRemoteVideoSourceTest, RemoteTrackStop);
   FRIEND_TEST_ALL_PREFIXES(PepperToVideoTrackAdapterTest, PutFrame);
 
@@ skipping 23 matching lines @@
   base::Optional<bool> noise_reduction_;
   bool is_screencast_;
   double min_frame_rate_;
 
   // Weak ref to the source this tracks is connected to.
   base::WeakPtr<MediaStreamVideoSource> source_;
 
   // This is used for tracking if all connected video sinks are secure.
   SecureDisplayLinkTracker<MediaStreamVideoSink> secure_tracker_;
 
-  // Remembering our desired video size.
+  // Remembering our desired video size and frame rate.
   int width_ = 0;
   int height_ = 0;
+  double frame_rate_ = 0.0;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoTrack);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_TRACK_H_