Allow HTMLMediaElement.currentTime to be set before the transition to HAVE_METADATA

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 357 matching lines @@
     virtual void mediaPlayerSetWebLayer(blink::WebLayer*) OVERRIDE FINAL;
     virtual void mediaPlayerMediaSourceOpened(blink::WebMediaSource*) OVERRIDE FINAL;
 
     void loadTimerFired(Timer<HTMLMediaElement>*);
     void progressEventTimerFired(Timer<HTMLMediaElement>*);
     void playbackProgressTimerFired(Timer<HTMLMediaElement>*);
     void startPlaybackProgressTimer();
     void startProgressEventTimer();
     void stopPeriodicTimers();
 
-    void seek(double time, ExceptionState&);
+    void seek(double time);
     void finishSeek();
     void checkIfSeekNeeded();
     void addPlayedRange(double start, double end);
 
     void scheduleTimeupdateEvent(bool periodicEvent);
     void scheduleEvent(const AtomicString& eventName); // FIXME: Rename to scheduleNamedEvent for clarity.
 
     // loading
     void prepareForLoad();
     void loadInternal();
@@ skipping 112 matching lines @@
 
     // Cached duration to suppress duplicate events if duration unchanged.
     double m_duration;
 
     // The last time a timeupdate event was sent (wall clock).
     double m_lastTimeUpdateEventWallTime;
 
     // The last time a timeupdate event was sent in movie time.
     double m_lastTimeUpdateEventMovieTime;
 
+    // The default playback start position.
+    double m_defaultPlaybackStartPosition;
+
     // Loading state.
     enum LoadState { WaitingForSource, LoadingFromSrcAttr, LoadingFromSourceElement };
     LoadState m_loadState;
     RefPtrWillBeMember<HTMLSourceElement> m_currentSourceNode;
     RefPtrWillBeMember<Node> m_nextChildNodeToConsider;
 
     // "Deferred loading" state (for preload=none).
     enum DeferredLoadState {
         // The load is not deferred.
         NotDeferred,
@@ skipping 110 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } //namespace
 
 #endif