Revert of Fix CreateHRGNFromSkPath to support arbitrary SkPaths. (https://codereview.chromium.org/83293008/)

Reason for revert:
As per http://crbug.com/344243 - this CL makes the App Launcher window invisible under Aero, and packaged app windows invisible under non-Aero (RDP/Classic theme/etc.).

BUG=344243

Original issue's description:
> Fix CreateHRGNFromSkPath to support arbitrary SkPaths.
> 
> Also adds tests for CreateHRGNFromSkPath and CreateHRGNFromSkRegion.
> 
> BUG=322360
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=251555

TBR=ben@chromium.org,wez@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=322360

Review URL: https://codereview.chromium.org/169223002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251636 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251636