Revert 241614 "Add ShapedScreenCapturer"

[Reason for revert: failed compile on Linux ASAN Builder.]

> Add ShapedScreenCapturer
> 
> ShapedScreenCapturer is a layer on top regular screen capturer that captures
> desktop shape and attaches it to the generated frames.
> 
> R=wez@chromium.org
> 
> Review URL: https://codereview.chromium.org/93973006

TBR=sergeyu@chromium.org

Review URL: https://codereview.chromium.org/103743005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241617 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241617