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This is a reland of f2f4de88.
The original version of this change caused crashes when running the
capture unit tests on Win7 (due to the MF DXGI Device Manager not being
supported on Win7).

The capture unit tests have been updated to skip MF D3D11 tests on Win7
 or earlier.

Original CL description:

[Win Camera Capture] Use D3D11 with Media Foundation Video Capture

This CL updates the VideoCaptureDeviceFactoryWin/VideoCaptureDeviceMFWin
implementations to use D3D11 with the MF device source and capture
engine. The VideoCaptureDeviceFactoryWin creates and manages an
IMFDXGIDeviceManager and associated D3D11 device instance. It provides
the IMFDXGIDeviceManager to the MF device source and also plumbs it to
the VideoCaptureDeviceMFWin implementation. The VideoCaptureDeviceMFWin
implementation subsequently provides the IMFDXGIDeviceManager to the MF
capture engine on initialization.

Providing a MF DXGI device manager to the MF device source and capture
engine is required for zero-copy capture (it allows the Windows frame
server service and MF capture engine to keep captured video frames in
GPU memory and expose MF samples backed by D3D11 textures).

Bug: 1120900
Change-Id: I41f1ef14e7040c84fa63e0ad2618330d73e7cdc6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2434469Reviewed-by: Ilya Nikolaevskiy <ilnik@chromium.org>
Reviewed-by: Markus Handell <handellm@google.com>
Reviewed-by: Henrik Andreasson <henrika@chromium.org>
Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Isuru Pathirana <Isuru.Pathirana@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#811483}