Add suppression for async deletion that may or may not be executed on exit.
Add suppression for async deletion that may or may not be executed on exit.

BUG=None
TEST=run ViewSourceTest with valgrind

Review URL: http://codereview.chromium.org/457022

git-svn-id: http://src.chromium.org/svn/trunk/src@33462 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5fd5a6a56b59542681c45ead093d9fa16b47e8f3
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