[Blink, RemotePlayback] Reject the prompt() with OperationError if there's a pending promise for th…

third_party/WebKit/Source/core/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 2176 matching lines @@
     m_paused = true;
     scheduleTimeupdateEvent(false);
     scheduleEvent(EventTypeNames::pause);
     scheduleRejectPlayPromises(AbortError);
   }
 
   updatePlayState();
 }
 
 void HTMLMediaElement::requestRemotePlayback() {
-  DCHECK(m_remoteRoutesAvailable);
-  webMediaPlayer()->requestRemotePlayback();
+  if (webMediaPlayer())
+    webMediaPlayer()->requestRemotePlayback();
 }
 
 void HTMLMediaElement::requestRemotePlaybackControl() {
-  DCHECK(m_remoteRoutesAvailable);
-  webMediaPlayer()->requestRemotePlaybackControl();
+  if (webMediaPlayer())
+    webMediaPlayer()->requestRemotePlaybackControl();
 }
 
 void HTMLMediaElement::closeMediaSource() {
   if (!m_mediaSource)
     return;
 
   m_mediaSource->close();
   m_mediaSource = nullptr;
 }
 
@@ skipping 1776 matching lines @@
 
 IntRect HTMLMediaElement::AutoplayHelperClientImpl::absoluteBoundingBoxRect()
     const {
   IntRect result;
   if (LayoutObject* object = m_element->layoutObject())
     result = object->absoluteBoundingBoxRect();
   return result;
 }
 
 }  // namespace blink