Improve certificate error mapping.
Improve certificate error mapping.

Fix leaks of (encoded) certificate extensions returned by
CERT_FindCertExtension.  They can be freed as soon as they
are decoded.

R=ukai
BUG=http://crbug.com/10911
TEST=none
Review URL: http://codereview.chromium.org/173154

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@24041 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