Update patch to new checkdeps location

BUG=none
R=dpranke@chromium.org, dpranke@chomium.org

Review URL: https://codereview.chromium.org/323873005

git-svn-id: svn://svn.chromium.org/blink/trunk@175864 bbb929c8-8fbe-4397-9dbb-9b2b20218538