Don't flip out in debug mode when launching the bookmark manager and the model isn't yet loaded.
Don't flip out in debug mode when launching the bookmark manager and the model isn't yet loaded.

Review URL: http://codereview.chromium.org/174593

git-svn-id: http://src.chromium.org/svn/trunk/src@24583 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 9f7b269266347b513cf82b3a0e4657e8bf2af92c
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