Add an extra paramter to disable scale on BaseWithIndexAndDisplacementMatcher.

R=bmeurer@chromium.org, epertoso@chromium.org, jarin@chromium.org, mstarzinger@chromium.org, mtrofin@chromium.org, titzer@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2239813002
Cr-Commit-Position: refs/heads/master@{#38635}