Simplifying using tasks. Now:
1. debugSetStepName is not needed
2. No need to call a completion callback when a task ends.
To minimize conflicts with pending changes, debugSetStepName and task callback are still defined, but do nothing. They will be removed opportunistically. New code shouldn't use them.
BUG=164227
TEST=No; this is a code cleanup.
Review URL: https://chromiumcodereview.appspot.com/19967005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@213844 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed
