Introduce SelectSettings algorithm for MediaStream video tracks.

content/renderer/media/media_stream_video_source.cc

 // Copyright 2014 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.
 
 #include "content/renderer/media/media_stream_video_source.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 
@@ skipping 561 matching lines @@
       double min_aspect_ratio;
       GetDesiredMinAndMaxAspectRatio(track.constraints,
                                      &min_aspect_ratio,
                                      &max_aspect_ratio);
       double max_frame_rate = 0.0f;
       // Note: Optional and ideal constraints are ignored; this is
       // purely a hard max limit.
       if (track.constraints.basic().frameRate.hasMax())
         max_frame_rate = track.constraints.basic().frameRate.max();
 
-      track_adapter_->AddTrack(track.track, track.frame_callback, max_width,
-                               max_height, min_aspect_ratio, max_aspect_ratio,
-                               max_frame_rate);
+      track_adapter_->AddTrack(
+          track.track, track.frame_callback,
+          VideoTrackAdapterSettings(max_width, max_height, min_aspect_ratio,
+                                    max_aspect_ratio, max_frame_rate));
       // Calculate resulting frame size if the source delivers frames
       // according to the current format. Note: Format may change later.
       gfx::Size desired_size;
       VideoTrackAdapter::CalculateTargetSize(
           current_format_.frame_size, gfx::Size(max_width, max_height),
           min_aspect_ratio, max_aspect_ratio, &desired_size);
       track.track->SetTargetSize(desired_size.width(), desired_size.height());
     }
 
     DVLOG(3) << "FinalizeAddTrack() result " << result;
@@ skipping 35 matching lines @@
       callback(callback) {
 }
 
 MediaStreamVideoSource::TrackDescriptor::TrackDescriptor(
     const TrackDescriptor& other) = default;
 
 MediaStreamVideoSource::TrackDescriptor::~TrackDescriptor() {
 }
 
 }  // namespace content