Revert 62695 - Revert 62644 - During shutdown delete any pending tasks if running under Heapchecker.
Revert 62695 - Revert 62644 - During shutdown delete any pending tasks if running under Heapchecker.

BUG=50345
TEST=Suppression no longer gets used.
Original Review URL: http://codereview.chromium.org/3791006
Revert Review URL: http://codereview.chromium.org/3779008
Review URL: http://codereview.chromium.org/4111005

git-svn-id: http://src.chromium.org/svn/trunk/src@64125 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 1b1c49e5b6f85fcc9b9c2fdd0af495a6ed5c6d83
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