Trim the copy of the dst made for dst-reading effects using the clip and dev-bounds of draw.

Adds dev bounds to circles and rects drawn by GrDrawTarget base class (GrIODB already provides rect bounds).

Author: bsalomon@google.com

Reviewed By: robertphilips@google.com,jvanverth@google.com,robertphillips@google.com

Review URL: https://chromiumcodereview.appspot.com/13222004

git-svn-id: http://skia.googlecode.com/svn/trunk@8453 2bbb7eff-a529-9590-31e7-b0007b416f81
5 files changed