Update .gitignore.

TBR=nsylvain
Review URL: https://codereview.chromium.org/11234028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@163269 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed