tree cb00fa2127a5b0367b69caec22618f0a9fead6d7
parent 3f860991ade1128e770c1268372f755a397e2942
author reed <reed@google.com> 1407787435 -0700
committer Commit bot <commit-bot@chromium.org> 1407787436 -0700

mark all SkImage methods const, so we can make it thread-safe

BUG=skia:
R=mtklein@google.com, halcanary@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/453613003