GitLab

If we send the available callback before we've finished loading
the current cached shaders off disk there is a potential race condition
where we do a cache clear while reading. This causes an issue with
the iterators and the cache does not get cleared.

This patch delays the signaling of the available cache until after
we have finished iterating over the cache and loading the old shaders.

BUG=176289


Review URL: https://chromiumcodereview.appspot.com/13730005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193411 0039d316-1c4b-4281-b951-d872f2087c98