Removed clientHeight() from MediaControlsPainter.

Source/core/html/HTMLMediaElement.h

 /*
  * 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 247 matching lines @@
     void scheduleEvent(PassRefPtrWillBeRawPtr<Event>);
     void scheduleTimeupdateEvent(bool periodicEvent);
 
     // Returns the "effective media volume" value as specified in the HTML5 spec.
     double effectiveMediaVolume() const;
 
     // Predicates also used when dispatching wrapper creation (cf. [SpecialWrapFor] IDL attribute usage.)
     virtual bool isHTMLAudioElement() const { return false; }
     virtual bool isHTMLVideoElement() const { return false; }
 
+    // Notify us that we have changed layout size.  This is useful so that we
+    // can paint based on our last known size, without having to trigger a
+    // layout mid-paint.
+    void notifySizeChanged(const LayoutSize& newSize);
+
+    // Get the last known layout size that we were given by notifySizeChanged.
+    const LayoutSize& cachedLayoutSize() const { return m_cachedSize; }
+
 protected:
     HTMLMediaElement(const QualifiedName&, Document&);
     ~HTMLMediaElement() override;
 #if ENABLE(OILPAN)
     void dispose();
 #endif
 
     void parseAttribute(const QualifiedName&, const AtomicString&) override;
     void finishParsingChildren() final;
     bool isURLAttribute(const Attribute&) const override;
@@ skipping 335 matching lines @@
         PersistentWillBeMember<AudioClientImpl> m_client;
         Mutex provideInputLock;
     };
 
     AudioSourceProviderImpl m_audioSourceProvider;
 #endif
 
     friend class MediaController;
     PersistentWillBeMember<MediaController> m_mediaController;
 
+    LayoutSize m_cachedSize;
+
     friend class Internals;
     friend class TrackDisplayUpdateScope;
 
     static URLRegistry* s_mediaStreamRegistry;
 };
 
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } // namespace blink
 
 #endif // HTMLMediaElement_h