The underlying view_ can be NULL while processing a ViewHostMsg_PaintRect IPC message. Attempting to prepare a backing store for a NULL view fails and crashes subsequently due to a NULL pointer dereference.
The underlying view_ can be NULL while processing a ViewHostMsg_PaintRect IPC message. Attempting
to prepare a backing store for a NULL view fails and crashes subsequently due to a NULL pointer dereference.

This fixes http://code.google.com/p/chromium/issues/detail?id=12167

Bug=12167

Review URL: http://codereview.chromium.org/113677

git-svn-id: http://src.chromium.org/svn/trunk/src@16582 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 35be8a3866d03729e16cf3451417b53e5990ebba
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