Adding support for shadows when drawing bitmaps with skia gpu device

Added code to handle this case in SkGpuDevice::drawBitmap
Added test to cover this use case in SampleTextureDomain.cpp

BUG=http://code.google.com/p/chromium/issues/detail?id=83440
REVIEW=http://codereview.appspot.com/4530068/



git-svn-id: http://skia.googlecode.com/svn/trunk@1730 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed