Changing a NOTREACHED() to a DLOG as StopAsync can be called before a view has been created.
Changing a NOTREACHED() to a DLOG as StopAsync can be called before a view has been created.

TEST=run automation tests.
BUG=none

Review URL: http://codereview.chromium.org/193099

git-svn-id: http://src.chromium.org/svn/trunk/src@26127 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3c97d1c7c9bece9f90b7d7b6281b924ee58198a3
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser