Spec compliant video constraints for getUserMedia behind flag.

content/renderer/media/rtc_peer_connection_handler_unittest.cc

 // Copyright (c) 2012 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/rtc_peer_connection_handler.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
@@ skipping 313 matching lines @@
     audio_tracks[0].initialize(blink_audio_source.id(), blink_audio_source);
     EXPECT_CALL(*mock_audio_device_factory_.mock_capturer_source(),
                 Initialize(_, _, -1));
     EXPECT_CALL(*mock_audio_device_factory_.mock_capturer_source(),
                 SetAutomaticGainControl(true));
     EXPECT_CALL(*mock_audio_device_factory_.mock_capturer_source(), Start());
     EXPECT_CALL(*mock_audio_device_factory_.mock_capturer_source(), Stop());
     CHECK(audio_source->ConnectToTrack(audio_tracks[0]));
     blink::WebVector<blink::WebMediaStreamTrack> video_tracks(
         static_cast<size_t>(1));
-    blink::WebMediaConstraints video_constraints;
-    video_constraints.initialize();
     video_tracks[0] = MediaStreamVideoTrack::CreateVideoTrack(
-        native_video_source, video_constraints,
-        MediaStreamVideoSource::ConstraintsCallback(), true);
+        native_video_source, MediaStreamVideoSource::ConstraintsCallback(),
+        true);
 
     blink::WebMediaStream local_stream;
     local_stream.initialize(blink::WebString::fromUTF8(stream_label),
                             audio_tracks, video_tracks);
     local_stream.setExtraData(new MediaStream());
     return local_stream;
   }
 
   // Creates a remote MediaStream and adds it to the mocked native
   // peer connection.
@@ skipping 1012 matching lines @@
                                     testing::Ref(tracks[0])));
 
   std::unique_ptr<blink::WebRTCDTMFSenderHandler> sender(
       pc_handler_->createDTMFSender(tracks[0]));
   EXPECT_TRUE(sender.get());
 
   StopAllTracks(local_stream);
 }
 
 }  // namespace content