Override drawRRect in fake SkBitmapDevices.

Recent changes to SkBitmapDevice modified ::drawRRect() to take
an optimized drawing case. Some subclasses of SkBitmapDevice were
depending on the old behavior of calling ::drawPath(). Since they
do not draw, attempting to take the drawing path can cause problems.
For these subclasses, call drawPath() in the subclass.

Corresponding change in chromium at https://codereview.chromium.org/58933005

Change-Id: I4dc18d06c4bb586cb188084b9f0cd592cab24f3b
4 files changed