Override drawRRect in fake SkBitmapDevices.

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.

R=reed@google.com, robertphillips@google.com

Committed: https://code.google.com/p/skia/source/detail?r=12247

[robertphillips, 2013-11-12 16:57:56]

lgtm

[reed1, 2013-11-12 17:06:43]

lgtm

[scroggo, 2013-11-12 17:10:10]

Committed patchset #1 manually as r12247 (presubmit successful).