Revert "linux: use /proc/self/exe when exec'ing ourselves"
Revert "linux: use /proc/self/exe when exec'ing ourselves"

This reverts commit r32410.  Stupid tests.

git-svn-id: http://src.chromium.org/svn/trunk/src@32422 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ea0fe9edeed229b3c27607dc062c2fa4eb0471e6
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