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

Source/core/html/MediaController.cpp

Index: Source/core/html/MediaController.cpp
diff --git a/Source/core/html/MediaController.cpp b/Source/core/html/MediaController.cpp
index 8c229c9450b0553b561cd183fcec3bcc33263fc7..23a91ca67d9ad6c16b9a72751e28a4688424c8e3 100644
--- a/Source/core/html/MediaController.cpp
+++ b/Source/core/html/MediaController.cpp
@@ -158,7 +158,7 @@ double MediaController::currentTime() const
     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:
@@ -175,7 +175,7 @@ void MediaController::setCurrentTime(double time, ExceptionState& exceptionState
 
     // 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();
 }
@@ -484,7 +484,7 @@ void MediaController::bringElementUpToSpeed(HTMLMediaElement* 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();