Don't die if the object file in question doesn't have symbols.
Don't die if the object file in question doesn't have symbols.

Review URL: http://codereview.chromium.org/179010

git-svn-id: http://src.chromium.org/svn/trunk/src@24697 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 6d6c5b9233e946bef32c1836b6bc553ccded739e
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