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

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 139 matching lines @@
 
     if (m_position == MediaPlayer::invalidTime()) {
         // Some clocks may return times outside the range of [0..duration].
         m_position = std::max(0.0, std::min(duration(), m_clock->currentTime()));
         m_clearPositionTimer.startOneShot(0, FROM_HERE);
     }
 
     return m_position;
 }
 
-void MediaController::setCurrentTime(double time, ExceptionState& exceptionState)
+void MediaController::setCurrentTime(double time)
 {
     // When the user agent is to seek the media controller to a particular new playback position,
     // it must follow these steps:
     // If the new playback position is less than zero, then set it to zero.
     time = std::max(0.0, time);
 
     // If the new playback position is greater than the media controller duration, then set it
     // to the media controller duration.
     time = std::min(time, duration());
 
     // Set the media controller position to the new playback position.
     m_position = time;
     m_clock->setCurrentTime(time);
 
     // Seek each slaved media element to the new playback position relative to the media element timeline.
     for (MediaElementSequence::const_iterator it = m_mediaElements.begin(); it != m_mediaElements.end(); ++it)
-        (*it)->seek(time, exceptionState);
+        (*it)->seek(time);
 
     scheduleTimeupdateEvent();
 }
 
 void MediaController::unpause()
 {
     // When the unpause() method is invoked, if the MediaController is a paused media controller,
     if (!m_paused)
         return;
 
@@ skipping 288 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);
+    element->seek(currentTime());
 
     // 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
@@ skipping 120 matching lines @@
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_mediaElements);
     visitor->trace(m_pendingEventsQueue);
     visitor->trace(m_executionContext);
 #endif
     EventTargetWithInlineData::trace(visitor);
 }
 
 }