Disable "pause-and-buffer" on Android, cancel suspended players.

media/blink/webmediaplayer_impl.cc

Index: media/blink/webmediaplayer_impl.cc
diff --git a/media/blink/webmediaplayer_impl.cc b/media/blink/webmediaplayer_impl.cc
index 003d084d7aa973ba04948c9bddf7341192395248..c616635a17f3588e325a8383f6fde474afd779bb 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -537,8 +537,17 @@ void WebMediaPlayerImpl::setBufferingStrategy(
   DVLOG(1) << __FUNCTION__;
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
+#if defined(OS_ANDROID)
+  // We disallow aggressive buffering on Android since it matches the behavior
+  // of the platform media player and may have data usage penalties.
+  // TODO(dalecurtis, hubbe): We should probably stop using "pause-and-buffer"
+  // everywhere. See http://crbug.com/594669 for more details.
+  buffering_strategy_ = BufferedDataSource::BUFFERING_STRATEGY_NORMAL;
+#else
   buffering_strategy_ =
       static_cast<BufferedDataSource::BufferingStrategy>(buffering_strategy);
+#endif
+
   if (data_source_)
     data_source_->SetBufferingStrategy(buffering_strategy_);
 }
@@ -873,6 +882,13 @@ void WebMediaPlayerImpl::OnPipelineSuspended() {
   memory_usage_reporting_timer_.Stop();
   ReportMemoryUsage();
 
+  // If we're not in an aggressive buffering state, tell the data source we have
+  // enough data so that it may release the connection.
+  if (buffering_strategy_ !=
+      BufferedDataSource::BUFFERING_STRATEGY_AGGRESSIVE) {
+    data_source_->OnBufferingHaveEnough(true);
+  }
+
   if (pending_suspend_resume_cycle_) {
     pending_suspend_resume_cycle_ = false;
     pipeline_controller_.Resume();
@@ -972,7 +988,7 @@ void WebMediaPlayerImpl::OnPipelineBufferingStateChanged(
   // Let the DataSource know we have enough data. It may use this information to
   // release unused network connections.
   if (data_source_)
-    data_source_->OnBufferingHaveEnough();
+    data_source_->OnBufferingHaveEnough(false);
 
   // Blink expects a timeChanged() in response to a seek().
   if (should_notify_time_changed_)
@@ -1030,6 +1046,9 @@ void WebMediaPlayerImpl::OnHidden() {
   if (!hasVideo() && !paused_ && !ended_)
     return;
 
+  // Always reset the buffering strategy to normal when suspending for hidden to
+  // prevent an idle network connection from lingering.
+  setBufferingStrategy(WebMediaPlayer::BufferingStrategy::Normal);
   pipeline_controller_.Suspend();
   if (delegate_)
     delegate_->PlayerGone(delegate_id_);