Update git-cl to use git.chromium.org.

BUG=none
TEST=git-cl works
TBR=nsylvain@chromium.org
Review URL: http://codereview.chromium.org/3757006

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@62916 0039d316-1c4b-4281-b951-d872f2087c98

git-cl

@@ -5,7 +5,7 @@
 
 base_dir=$(dirname "$0")
 repo="$base_dir/git_cl_repo"
-url="http://src.chromium.org/git/git-cl.git"
+url="http://git.chromium.org/git/git-cl.git"
 cur_url=$(git config -f "$repo/.git/config" remote.origin.url)
 
 if [ -e "$repo" -a "$cur_url" != "$url" ]; then