Fix third_party PRESUBMIT script
Fix third_party PRESUBMIT script

It looked at the wrong file contents for its checks, and it had
a redundant check for name. The "Security Critical" text had a
different spelling than in README.chromium.template.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6820055

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@81181 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