Disable idle suspend for Chromecast

media/blink/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 "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
@@ skipping 1440 matching lines @@
     ReportMemoryUsage();
   }
 }
 
 void WebMediaPlayerImpl::SetSuspendState(bool is_suspended) {
   // Do not change the state after an error has occurred.
   // TODO(sandersd): Update PipelineController to remove the need for this.
   if (IsNetworkStateError(network_state_))
     return;
 
+  if (can_suspend_state_ == CanSuspendState::UNKNOWN) {
 #if defined(OS_MACOSX) || defined(OS_WIN)
-  // TODO(sandersd): Idle suspend is disabled on OSX and Windows for hardware
-  // decoding / opaque video frames since these frames are owned by the decoder
-  // in the GPU process. http://crbug.com/595716 and http://crbug.com/602708
-  if (can_suspend_state_ == CanSuspendState::UNKNOWN) {
+    // TODO(sandersd): Idle suspend is disabled on OSX and Windows for hardware
+    // decoding / opaque video frames since these frames are owned by the
+    // decoder in the GPU process. http://crbug.com/595716 and
+    // http://crbug.com/602708
     scoped_refptr<VideoFrame> frame = GetCurrentFrameFromCompositor();
     if (frame) {
       can_suspend_state_ =
           frame->metadata()->IsTrue(VideoFrameMetadata::DECODER_OWNS_FRAME)
               ? CanSuspendState::NO
               : CanSuspendState::YES;
     }
+#else
+    can_suspend_state_ = CanSuspendState::YES;
+#endif
   }
-#else
-  can_suspend_state_ = CanSuspendState::YES;
-#endif
 
-  if (can_suspend_state_ == CanSuspendState::NO)
+  if (can_suspend_state_ == CanSuspendState::NO || !pipeline_.CanSuspend())

[sandersd (OOO until July 31), 2016/05/23 18:41:58]

We should probably allow Resume() even if the pipeline cannot be suspended, in
case some state gets out of sync. (c.f. comment in PipelineImpl)

     return;
 
   if (is_suspended) {
     pipeline_controller_.Suspend();
   } else {
     pipeline_controller_.Resume();
   }
 }
 
 WebMediaPlayerImpl::PlayState
@@ skipping 109 matching lines @@
            << ", Video: " << stats.video_memory_usage << ", DataSource: "
            << (data_source_ ? data_source_->GetMemoryUsage() : 0)
            << ", Demuxer: " << demuxer_memory_usage;
 
   const int64_t delta = current_memory_usage - last_reported_memory_usage_;
   last_reported_memory_usage_ = current_memory_usage;
   adjust_allocated_memory_cb_.Run(delta);
 }
 
 }  // namespace media