Reverting temporarily, causes a compile warning with Clang:

..\..\third_party\angle\src\libANGLE\renderer\d3d\d3d11\Renderer11.cpp(242,7) :  error: field 'mDebug' will be initialized after field 'mCurStencilSize' [-Werror,-Wreorder]
      mDebug(nullptr),
      ^
1 error generated.
ninja: build stopped: subcommand failed.

http://build.chromium.org/p/tryserver.chromium.win/builders/win_clang_dbg/builds/98

This reverts commit 685aa4b8.

Change-Id: I9dab08b26e2eddf508a7bcde7813c25be350bf31
Reviewed-on: https://chromium-review.googlesource.com/307520Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>