Update all float attributes in HTMLMediaElement and related objects to double

Source/WebCore/html/HTMLMediaElement.idl

 /*
  * Copyright (C) 2007, 2010, 2011, 2012 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 44 matching lines @@
 // ready state
 const unsigned short HAVE_NOTHING = 0;
 const unsigned short HAVE_METADATA = 1;
 const unsigned short HAVE_CURRENT_DATA = 2;
 const unsigned short HAVE_FUTURE_DATA = 3;
 const unsigned short HAVE_ENOUGH_DATA = 4;
 readonly attribute unsigned short readyState;
 readonly attribute boolean seeking;
 
 // playback state
-attribute float currentTime
+attribute double currentTime
     setter raises (DOMException);
 readonly attribute double initialTime;
-readonly attribute float startTime;
-readonly attribute float duration;
+readonly attribute double startTime;
+readonly attribute double duration;
 readonly attribute boolean paused;
-attribute float defaultPlaybackRate;
-attribute float playbackRate;
+attribute double defaultPlaybackRate;
+attribute double playbackRate;
 readonly attribute TimeRanges played;
 readonly attribute TimeRanges seekable;
 readonly attribute boolean ended;
 attribute [Reflect] boolean autoplay;
 attribute [Reflect] boolean loop;
 void play();
 void pause();
 
 // controls
 attribute boolean controls;
-attribute float volume 
+attribute double volume 
     setter raises (DOMException);
 attribute boolean muted;
 attribute [Reflect=muted] boolean defaultMuted;
 
 // WebKit extensions
 attribute boolean webkitPreservesPitch;
 
 readonly attribute boolean webkitHasClosedCaptions;
 attribute boolean webkitClosedCaptionsVisible;
 
@@ skipping 20 matching lines @@
 
 #if defined(ENABLE_VIDEO_TRACK) && ENABLE_VIDEO_TRACK
 [V8EnabledAtRuntime=webkitVideoTrack] TextTrack addTextTrack(in DOMString kind, in [Optional] DOMString label, in [Optional] DOMString language)
     raises (DOMException);
 readonly attribute [V8EnabledAtRuntime=webkitVideoTrack] TextTrackList textTracks;
 #endif
 
 [Reflect, TreatNullAs=NullString] attribute DOMString mediaGroup;
 attribute [CustomSetter] MediaController controller;
 };