Suppress an invalid read in extension notifications
Suppress an invalid read in extension notifications

TBR=thestig

BUG=47863
TEST=Greener valgind bots

Review URL: http://codereview.chromium.org/2810039

git-svn-id: http://src.chromium.org/svn/trunk/src@51134 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: cb13bbdc6bffa89f14bc60e4b6e6e0a7cdd38bf2
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