Change VideoCaptureDeliverFrameCB's signature

content/renderer/media/media_stream_video_track_unittest.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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 119 matching lines @@
 
  private:
   base::Closure callback_;
   bool* correct_;
   base::ThreadCheckerImpl thread_checker_;
 };
 
 void CheckThreadVideoFrameReceiver(
     CheckThreadHelper* helper,
     const scoped_refptr<media::VideoFrame>& frame,
-    const base::TimeTicks& estimated_capture_time) {
+    base::TimeTicks estimated_capture_time) {
   // Do nothing.
 }
 
 // Checks that the callback given to the track is reset on the right thread.
 TEST_F(MediaStreamVideoTrackTest, ResetCallbackOnThread) {
   MockMediaStreamVideoSink sink;
   blink::WebMediaStreamTrack track = CreateTrack();
 
   base::RunLoop run_loop;
   bool correct = false;
@@ skipping 73 matching lines @@
   MediaStreamVideoTrack* const native_track2 =
         MediaStreamVideoTrack::GetVideoTrack(track2);
   native_track2->Stop();
   EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded, sink2.state());
   EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded,
             blink_source().readyState());
   MediaStreamVideoSink::RemoveFromVideoTrack(&sink2, track2);
 }
 
 }  // namespace content