Eliminate use of cricket::VideoFrame::GetTimeStamp.

content/renderer/media/webrtc/media_stream_remote_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/webrtc/media_stream_remote_video_source.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 80 matching lines @@
 RemoteVideoSourceDelegate::~RemoteVideoSourceDelegate() {
 }
 
 namespace {
 void DoNothing(const scoped_refptr<rtc::RefCountInterface>& ref) {}
 }  // anonymous
 
 void MediaStreamRemoteVideoSource::RemoteVideoSourceDelegate::OnFrame(
     const cricket::VideoFrame& incoming_frame) {
   const base::TimeDelta incoming_timestamp = base::TimeDelta::FromMicroseconds(
-      incoming_frame.GetTimeStamp() / rtc::kNumNanosecsPerMicrosec);
+      incoming_frame.timestamp_us());
   const base::TimeTicks render_time =
       base::TimeTicks() + incoming_timestamp + time_diff_;
 
   TRACE_EVENT1("webrtc", "RemoteVideoSourceDelegate::RenderFrame",
                "Ideal Render Instant", render_time.ToInternalValue());
 
   CHECK_NE(media::kNoTimestamp, incoming_timestamp);
   if (start_timestamp_ == media::kNoTimestamp)
     start_timestamp_ = incoming_timestamp;
   const base::TimeDelta elapsed_timestamp =
@@ skipping 129 matching lines @@
     case webrtc::MediaStreamTrackInterface::kEnded:
       SetReadyState(blink::WebMediaStreamSource::ReadyStateEnded);
       break;
     default:
       NOTREACHED();
       break;
   }
 }
 
 }  // namespace content