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This CL contains MediaFoundationProtectionManager to be used by
MediaFoundationRenderer. MediaFoundationProtectionManager implements
IMFContentProtectionManager and
ABI::Windows::Media::Protection::IMediaProtectionManager

Explainer:
https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/master/Media/MFCdm/explainer.md
Design Doc:
https://docs.google.com/document/d/1kXMdmfsSKU3tcwTxG-wFU-MaEA6sN3by45PCGBV8zJU

Bug: 999747
Change-Id: Ib6125ac6040798b44c3b10a40851eb852880798f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2088682
Commit-Queue: Frank Li <frankli@microsoft.com>
Reviewed-by: Xiaohan Wang <xhwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749270}