the end of the video is reached.

Reviewed by Eric Carlson.

* WebView/WebVideoFullscreenHUDWindowController.h: Cleaned up.
* WebView/WebVideoFullscreenHUDWindowController.mm:
(-[WebVideoFullscreenHUDWindowController scheduleTimeUpdate]): Updated
for the renaming of -updateRate to -updatePlayButton.
(-[WebVideoFullscreenHUDWindowController updatePlayButton]): Renamed
-updateRate to this.
(-[WebVideoFullscreenHUDWindowController updateRate]): This method now
responds to changes to the playback rate by updating the play button
and showing or hiding the HUD as necessary.
(-[WebVideoFullscreenHUDWindowController togglePlaying:]): Now only
toggles playing. UI updates are driven by -updateRate being called.
(-[WebVideoFullscreenHUDWindowController playing]): Cleaned up.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@50636 268f45cc-cd09-0410-ab3c-d52691b4dbfc