Reviewed by Brady.

        Fix for <rdar://problem/5605768> Render full-page video/audio with <video>/<audio> instead of QuickTime plug-in

        * WebCore.xcodeproj/project.pbxproj: Added MediaDocument class.
        * GNUmakefile.am: ditto.
        * WebCore.pro: ditto.
        * WebCore.vcproj/WebCore.vcproj: ditto.
        * WebCoreSources.bkl: ditto.

        * dom/DOMImplementation.cpp: (WebCore::DOMImplementation::createDocument):
          Check to see if the type can be played by our MediaPlayer, if so create a MediaDocument
        * dom/Document.h: (WebCore::Document::isMediaDocument): Added.

        * loader/MediaDocument.cpp: Added.
        (WebCore::MediaTokenizer::MediaTokenizer):
        (WebCore::MediaTokenizer::wantsRawData):
        (WebCore::MediaTokenizer::write):
        (WebCore::MediaTokenizer::createDocumentStructure):
        (WebCore::MediaTokenizer::writeRawData):
        (WebCore::MediaTokenizer::stopParsing):
        (WebCore::MediaTokenizer::finish):
        (WebCore::MediaTokenizer::isWaitingForScripts):
        (WebCore::MediaDocument::MediaDocument):
        (WebCore::MediaDocument::createTokenizer):
        * loader/MediaDocument.h: Added.
        (WebCore::MediaDocument::create):
        (WebCore::MediaDocument::isMediaDocument):

        * page/InspectorController.cpp: (WebCore::getResourceDocumentNode):
          Added MediaDocument case so it is handled the same as a PluginDocument or ImageDocument.
        * platform/graphics/MediaPlayer.cpp: (WebCore::MediaPlayer::supportsType): Added.
        * platform/graphics/MediaPlayer.h:
        * rendering/RenderMedia.cpp: (WebCore::RenderMedia::updateControlVisibility):
          Instead of checking the html element to decide if the media is audio, check the player.
          This means that if a video element actually only contains audio, then we will still avoid fading the controls in and out.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@34637 268f45cc-cd09-0410-ab3c-d52691b4dbfc