https://bugs.webkit.org/show_bug.cgi?id=90015
<rdar://problem/10770317>

Reviewed by Anders Carlsson.

Source/WebCore: 

* html/HTMLMediaElement.cpp:
(WebCore):
(WebCore::HTMLMediaElement::mediaPlayerGraphicsDeviceAdapter): New, return the client's graphics 
    device adapter.
* html/HTMLMediaElement.h:

* page/ChromeClient.h:
(WebCore::ChromeClient::graphicsDeviceAdapter): New.

* platform/graphics/MediaPlayer.cpp:
(WebCore::MediaPlayer::graphicsDeviceAdapter): New, ask the media element for the graphics
    device adapter.
* platform/graphics/MediaPlayer.h:

* platform/graphics/avfoundation/cf/AVFoundationCFSoftLinking.h: Soft-link AVCFPlayerSetDirect3DDevice
    and AVCFPlayerEnableHardwareAcceleratedVideoDecoderKey.

* platform/graphics/avfoundation/cf/MediaPlayerPrivateAVFoundationCF.cpp: 
(WebCore::MediaPlayerPrivateAVFoundationCF::createAVAssetForURL): Pass the current d3d9
    device interface to the AVFWrapper.
(WebCore::AVFWrapper::createAssetForURL): If the d...