Make SkImage_Gpu share it's pixelref with the surface to prevent premature return to scratch pool.

BUG=crbug.com/263329
TEST=Surface unit test, function Test_crbug263329
R=bsalomon@google.com, reed@google.com

Author: junov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/20354003

git-svn-id: http://skia.googlecode.com/svn/trunk/include@10378 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed