Stricter user gestures for touch - measure and warn

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 2030 matching lines @@
     m_autoplayHelper->playMethodCalled();
 
     if (!UserGestureIndicator::processingUserGesture()) {
         if (m_userGestureRequiredForPlay) {
             recordAutoplayMetric(PlayMethodFailed);
             String message = ExceptionMessages::failedToExecute("play", "HTMLMediaElement", "API can only be initiated by a user gesture.");
             document().addConsoleMessage(ConsoleMessage::create(JSMessageSource, WarningMessageLevel, message));
             return NotAllowedError;
         }
     } else {
+        UserGestureIndicator::utilizeUserGesture();
         // We ask the helper to remove the gesture requirement for us, so that
         // it can record the reason.
         Platform::current()->recordAction(UserMetricsAction("Media_Play_WithGesture"));
         m_autoplayHelper->removeUserGestureRequirement(GesturelessPlaybackEnabledByPlayMethod);
     }
 
     if (m_error && m_error->code() == MediaError::MEDIA_ERR_SRC_NOT_SUPPORTED)
         return NotSupportedError;
 
     playInternal();
@@ skipping 39 matching lines @@
     setIgnorePreloadNone();
     updatePlayState();
 }
 
 void HTMLMediaElement::pause()
 {
     WTF_LOG(Media, "HTMLMediaElement::pause(%p)", this);
 
     // Only buffer aggressively on a user-initiated pause. Other types of pauses
     // (which go directly to pauseInternal()) should not cause this behavior.
-    if (webMediaPlayer() && UserGestureIndicator::processingUserGesture())
+    if (webMediaPlayer() && UserGestureIndicator::utilizeUserGesture())
         webMediaPlayer()->setBufferingStrategy(WebMediaPlayer::BufferingStrategy::Aggressive);
 
     pauseInternal();
 }
 
 void HTMLMediaElement::pauseInternal()
 {
     WTF_LOG(Media, "HTMLMediaElement::pauseInternal(%p)", this);
 
     if (m_networkState == NETWORK_EMPTY)
@@ skipping 1761 matching lines @@
 }
 
 #if !ENABLE(OILPAN)
 WeakPtr<HTMLMediaElement> HTMLMediaElement::createWeakPtr()
 {
     return m_weakPtrFactory.createWeakPtr();
 }
 #endif
 
 } // namespace blink