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

third_party/WebKit/Source/core/html/AutoplayExperimentHelper.h

 // Copyright 2015 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.
 
 #ifndef AutoplayExperimentHelper_h
 #define AutoplayExperimentHelper_h
 
 #include "core/page/Page.h"
 #include "platform/Timer.h"
 #include "platform/geometry/IntRect.h"
@@ skipping 108 matching lines @@
         virtual bool isHTMLVideoElement() const = 0;
         virtual bool isHTMLAudioElement() const = 0;
 
         // Document
         virtual bool isLegacyViewportType() = 0;
         virtual PageVisibilityState pageVisibilityState() const = 0;
         virtual String autoplayExperimentMode() const = 0;
 
         // Frame
         virtual bool isCrossOrigin() const = 0;
+        virtual bool isAutoplayAllowedPerSettings() const = 0;
 
         // LayoutObject
         virtual void setRequestPositionUpdates(bool) = 0;
         virtual IntRect absoluteBoundingBoxRect() const = 0;
 
         DEFINE_INLINE_VIRTUAL_TRACE() { }
     };
 
     static AutoplayExperimentHelper* create(Client* client)
     {
@@ skipping 172 matching lines @@
 inline AutoplayExperimentHelper::Mode& operator|=(AutoplayExperimentHelper::Mode& a,
     const AutoplayExperimentHelper::Mode& b)
 {
     a = static_cast<AutoplayExperimentHelper::Mode>(static_cast<int>(a) | static_cast<int>(b));
     return a;
 }
 
 } // namespace blink
 
 #endif // AutoplayExperimentHelper_h