Enable inconsistent-missing-override for Clang Fix the resulting compile errors. No-Try: true Change-Id: I88e74f240b29ecf7b3883b0c5880dcb871e4c3cd Reviewed-on: https://chromium-review.googlesource.com/710415 Commit-Queue: Ben Wagner <benjaminwagner@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>