Revert 170912 - need more delayloads.

Revert 170912 - need more delayloads.
> Video capture implementation using the Media Foundation API.
> This replaces the DirectShow based implementation for Vista,Win7 and Win8.
> DirectShow isn't supported in metro mode so once we've landed this,
> we can revert the workaround we have in place for Win8.
> 
> The CapabilityList class is mostly moved code from the DS implementation.
> The difference is that I'm not using a std::map<> since that wasn't
> really necessary and instead adding one member (via inheritance) to
> the capability struct on Windows that holds the stream id that is needed.
> 
> BUG=140545
> TEST=All video capture tests in media_unittests now test this new implementation (except on XP).
> 
> Review URL: https://codereview.chromium.org/11419200

TBR=tommi@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=170925