Add WebMediaPlayer::timelineOffset() support to WebMediaPlayerImpl.

content/renderer/media/webmediaplayer_impl.cc

 // 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.
 
 #include "content/renderer/media/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 #include <vector>
@@ skipping 462 matching lines @@
 
 double WebMediaPlayerImpl::duration() const {
   DCHECK(main_loop_->BelongsToCurrentThread());
 
   if (ready_state_ == WebMediaPlayer::ReadyStateHaveNothing)
     return std::numeric_limits<double>::quiet_NaN();
 
   return GetPipelineDuration();
 }
 
+double WebMediaPlayerImpl::timelineOffset() const {
+  DCHECK(main_loop_->BelongsToCurrentThread());
+
+  if (pipeline_metadata_.timeline_offset.is_null())
+    return std::numeric_limits<double>::quiet_NaN();
+
+  return pipeline_metadata_.timeline_offset.ToJsTime();
+}
+
 double WebMediaPlayerImpl::currentTime() const {
   DCHECK(main_loop_->BelongsToCurrentThread());
   return (paused_ ? paused_time_ : pipeline_.GetMediaTime()).InSecondsF();
 }
 
 WebMediaPlayer::NetworkState WebMediaPlayerImpl::networkState() const {
   DCHECK(main_loop_->BelongsToCurrentThread());
   return network_state_;
 }
 
@@ skipping 832 matching lines @@
 
   if (web_cdm_) {
     decryptor_ready_cb.Run(web_cdm_->GetDecryptor());
     return;
   }
 
   decryptor_ready_cb_ = decryptor_ready_cb;
 }
 
 }  // namespace content