On Windows 8 load the mfcore.dll and invoke the MFStartup API in the

On Windows 8 load the mfcore.dll and invoke the MFStartup API in the
DXVAVideoDecodeAccelerator::PreSandboxInitialization function. 

This is because these functions fail on Windows 8.1 in the gpu sandbox causing us to
fallback to s/w video decode for H.264 videos.

BUG=281752
R=scherkus@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=220483

[scherkus (not reviewing), 2013-08-29 23:56:00]

lgtm w/ nit

https://codereview.chromium.org/23726005/diff/1/content/common/gpu/media/dxva...
File content/common/gpu/media/dxva_video_decode_accelerator.cc (right):

https://codereview.chromium.org/23726005/diff/1/content/common/gpu/media/dxva...
content/common/gpu/media/dxva_video_decode_accelerator.cc:403: // sandbox
end sentences with periods.

[scherkus (not reviewing), 2013-08-29 23:56:16]

also ... do we have any win8 bots that could have caught this?

[ananta, 2013-08-30 02:21:14]

We have a windows 8 bot which runs aura tests. No DXVA tests though.

https://codereview.chromium.org/23726005/diff/1/content/common/gpu/media/dxva...
File content/common/gpu/media/dxva_video_decode_accelerator.cc (right):

https://codereview.chromium.org/23726005/diff/1/content/common/gpu/media/dxva...
content/common/gpu/media/dxva_video_decode_accelerator.cc:403: // sandbox
On 2013/08/29 23:56:00, scherkus wrote:
> end sentences with periods.

Done.

[ananta, 2013-08-30 02:26:18]

Committed patchset #2 manually as r220483 (presubmit successful).