Have HTMLMediaElement::play() return a Promise.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 3507 matching lines @@
 {
     HitTestResult result = hitTestResultForViewportPos(location);
     RefPtrWillBeRawPtr<Node> node = result.innerNode();
     if (!isHTMLVideoElement(*node) && !isHTMLAudioElement(*node))
         return;
 
     RefPtrWillBeRawPtr<HTMLMediaElement> mediaElement = static_pointer_cast<HTMLMediaElement>(node);
     switch (action.type) {
     case WebMediaPlayerAction::Play:
         if (action.enable)
-            mediaElement->play();
+            mediaElement->playInternal();

[philipj_slow, 2016/02/02 09:56:34]

Dito.

[mlamouri (slow - plz ping), 2016/02/03 19:28:58]

Fixed.

         else
             mediaElement->pause();
         break;
     case WebMediaPlayerAction::Mute:
         mediaElement->setMuted(action.enable);
         break;
     case WebMediaPlayerAction::Loop:
         mediaElement->setLoop(action.enable);
         break;
     case WebMediaPlayerAction::Controls:
@@ skipping 1091 matching lines @@
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
 } // namespace blink