GitLab

Most of them are replaced with WeakPtrFactory to avoid exposing AsWeakPtr()

BUG=None
TEST=build success


Review URL: https://chromiumcodereview.appspot.com/10824061

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149375 0039d316-1c4b-4281-b951-d872f2087c98