GitLab

The SetAlphaShape bugs have been fixed:
* HiDPI Shape: crrev.com/394193003
* Null Shape: crrev.com/456943004

BUG=324071,374440

Review URL: https://codereview.chromium.org/453173002

Cr-Commit-Position: refs/heads/master@{#289147}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289147 0039d316-1c4b-4281-b951-d872f2087c98