Merge "HWUI: do not call glCopyTexSubImage2D on empty area." into nyc-dev am:...
Merge "HWUI: do not call glCopyTexSubImage2D on empty area." into nyc-dev am: e4e240f1 am: e136aba4
am: e105927f
* commit 'e105927f':
HWUI: do not call glCopyTexSubImage2D on empty area.
Change-Id: I5fe170f0ec7ac82f4502b545fb756cc9df51f0fb