Update all float attributes in HTMLMediaElement and related objects to double

Source/WebCore/html/shadow/MediaControlElements.h

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Google 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.
@@ skipping 213 matching lines @@
 };
 
 // ----------------------------
 
 class MediaControlTimelineElement : public MediaControlInputElement {
 public:
     static PassRefPtr<MediaControlTimelineElement> create(Document*, MediaControls*);
 
     virtual bool willRespondToMouseClickEvents() OVERRIDE;
 
-    void setPosition(float);
-    void setDuration(float);
+    void setPosition(double);
+    void setDuration(double);
 
 private:
     explicit MediaControlTimelineElement(Document*, MediaControls*);
 
     virtual const AtomicString& shadowPseudoId() const OVERRIDE;
     virtual void defaultEventHandler(Event*) OVERRIDE;
 
     MediaControls* m_controls;
 };
 
@@ skipping 73 matching lines @@
     float m_fontSize;
 };
 
 #endif
 
 } // namespace WebCore
 
 #endif // ENABLE(VIDEO)
 
 #endif // MediaControlElements_h