[Android, Video, Autoplay] Only autoplay muted videos, ignore audio tags.

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 3692 matching lines @@
 
 bool HTMLMediaElement::isGestureNeededForPlayback() const
 {
     if (!m_lockedPendingUserGesture)
         return false;
 
     // We want to allow muted video to autoplay if:
     // - the flag is enabled;
     // - Data Saver is not enabled;
     // - Autoplay is enabled in settings;
-    if (muted()
+    if (isHTMLVideoElement()
+        && muted()
         && RuntimeEnabledFeatures::autoplayMutedVideosEnabled()
         && !(document().settings() && document().settings()->dataSaverEnabled())
         && isAutoplayAllowedPerSettings()) {
         return false;
     }
 
     if (m_autoplayHelper->isGestureRequirementOverridden())
         return false;
 
     return true;
@@ skipping 260 matching lines @@
 
 IntRect HTMLMediaElement::AutoplayHelperClientImpl::absoluteBoundingBoxRect() const
 {
     IntRect result;
     if (LayoutObject* object = m_element->layoutObject())
         result = object->absoluteBoundingBoxRect();
     return result;
 }
 
 } // namespace blink