Disable autoplay experiments if the autoplay content settings is set to block.

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 306 matching lines @@
     PageVisibilityState pageVisibilityState() const override;
     String autoplayExperimentMode() const override;
 
     // Frame
     bool isCrossOrigin() const override
     {
         const Frame* frame = m_element->document().frame();
         return frame && frame->isCrossOrigin();
     }
 
+    bool isAutoplayAllowedPerSettings() const override;
+
     // LayoutObject
     void setRequestPositionUpdates(bool) override;
     IntRect absoluteBoundingBoxRect() const override;
 
     DEFINE_INLINE_VIRTUAL_TRACE()
     {
         visitor->trace(m_element);
         Client::trace(visitor);
     }
 
@@ skipping 3494 matching lines @@
 
 String HTMLMediaElement::AutoplayHelperClientImpl::autoplayExperimentMode() const
 {
     String mode;
     if (m_element->document().settings())
         mode = m_element->document().settings()->autoplayExperimentMode();
 
     return mode;
 }
 
+bool HTMLMediaElement::AutoplayHelperClientImpl::isAutoplayAllowedPerSettings() const
+{
+    LocalFrame* frame = m_element->document().frame();
+    if (!frame)
+        return false;
+    FrameLoaderClient* frameLoaderClient = frame->loader().client();
+    return frameLoaderClient && frameLoaderClient->allowAutoplay(false);
+}
+
 void HTMLMediaElement::AutoplayHelperClientImpl::setRequestPositionUpdates(bool request)
 {
     if (LayoutObject* layoutObject = m_element->layoutObject()) {
         LayoutMediaItem layoutMediaItem = LayoutMediaItem(toLayoutMedia(layoutObject));
         layoutMediaItem.setRequestPositionUpdates(request);
     }
 }
 
 IntRect HTMLMediaElement::AutoplayHelperClientImpl::absoluteBoundingBoxRect() const
 {
     IntRect result;
     if (LayoutObject* object = m_element->layoutObject())
         result = object->absoluteBoundingBoxRect();
     return result;
 }
 
 } // namespace blink