Only check changed lines for ForTest(ing) usage in production code.

This is beneficial since there are occasional false positives, so it is nicer not to trigger them when you are just touching a file that contains them.

BUG=none

Review URL: https://codereview.chromium.org/123203002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242800 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242800
Remove unnecesssary menu reconfigure.

BUG=292119

Review URL: https://codereview.chromium.org/121353003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242801 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242801