Avoid leaks at shutdown when running purify
Avoid leaks at shutdown when running purify

We'll risk a (rare) crash under purify, but avoid having a leak detected.

Note that this "leak" at shutdown is NBD, but this code at least shows
that the would be leak is "understood" and acceptable.

bug=6532
r=erikkay
Review URL: http://codereview.chromium.org/42083

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@11473 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser