Let the effective media volume be 0 if the media element is muted

Source/core/html/MediaController.cpp

 /*
  * Copyright (C) 2011 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 467 matching lines @@
 
 void MediaController::bringElementUpToSpeed(HTMLMediaElement* element)
 {
     ASSERT(element);
     ASSERT(m_mediaElements.contains(element));
 
     // When the user agent is to bring a media element up to speed with its new media controller,
     // it must seek that media element to the MediaController's media controller position relative
     // to the media element's timeline.
     element->seek(currentTime(), IGNORE_EXCEPTION);
+
+    // Update volume to take controller volume and mute into account.
+    element->updateVolume();
 }
 
 bool MediaController::isRestrained() const
 {
     ASSERT(!m_mediaElements.isEmpty());
 
     // A MediaController is a restrained media controller if the MediaController is a playing media
     // controller,
     if (m_paused)
         return false;
@@ skipping 117 matching lines @@
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_mediaElements);
     visitor->trace(m_pendingEventsQueue);
     visitor->trace(m_executionContext);
 #endif
     EventTargetWithInlineData::trace(visitor);
 }
 
 }