Fix a NOTREACHED in RenderViewHost::OnExtensionRequest.  It was firing because RenderViewHosts created via window.open don't have their enabled_bindings_ set. Review URL: http://codereview.chromium.org/119134
Fix a NOTREACHED in RenderViewHost::OnExtensionRequest.  It was firing because
RenderViewHosts created via window.open don't have their enabled_bindings_
set.
Review URL: http://codereview.chromium.org/119134

git-svn-id: http://src.chromium.org/svn/trunk/src@17646 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3d30524c5d99800b8817e81f964b6a43553cd1d2
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