Reviewed by Simon Fraser.

        <rdar://problem/7303145> 
        Can't exit full screen mode or restart movie after pressing command -R.

        * html/HTMLMediaElement.cpp:
        (WebCore::HTMLMediaElement::removedFromDocument):
        (WebCore::HTMLMediaElement::documentWillBecomeInactive):
            Exit from fullscreen if necessary.
        * html/HTMLMediaElement.h:

2009-10-28  Eric Carlson  <eric.carlson@apple.com>

        Reviewed by Simon Fraser.

        <rdar://problem/7303145> 
        Can't exit full screen mode or restart movie after pressing command -R.

        * WebView/WebVideoFullscreenController.mm:
        (-[WebVideoFullscreenController _requestExit]): 
            New, call media element's exitFullscreen method.
        (-[WebVideoFullscreenController requestExitFullscreenWithAnimation:]): 
            Call mediaElement->exitFullscreen() after a delay as it turns around and calls
            WebVideoFullscreenController:exitFullscreen.

        * WebView/WebVideoFullscreenHUDWindowController.h:
        * WebView/WebVideoFullscreenHUDWindowController.mm:
        (-[WebVideoFullscreenHUDWindow resignFirstResponder]):
            New, don't give up responder status.
        (-[WebVideoFullscreenHUDWindow performKeyEquivalent:]):
            New, block all command key events.
        (-[WebVideoFullscreenHUDWindowController exitFullscreen:]):
            Remember when we are in the process of exiting fullscreen, don't allow recursion.

        * WebView/WebView.mm:
        (-[WebView _exitFullscreen]):
            Early return if fullscreen controller is nil.

        * WebView/WebWindowAnimation.h: 
            Correct comment about _window retain status.
        * WebView/WebWindowAnimation.m:
        (-[WebWindowScaleAnimation dealloc]):
            Don't release _window, we never reatained it.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@50242 268f45cc-cd09-0410-ab3c-d52691b4dbfc