Add presubmit check for oppressive language

BUG=b:162024466
TEST=try uploading a CL with one of the blocked terms in it

Change-Id: I1014103c833dfe8f760f24fcd8e8834c97dd6a95
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/gestures/+/2463467
Tested-by: Harry Cutts <hcutts@chromium.org>
Auto-Submit: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Commit-Queue: Sean O'Brien <seobrien@chromium.org>
1 file changed