commit 09b25d538b2cd35b4c1c482fce20206d254d2736
author suzyh <suzyh@chromium.org> Thu Jun 30 08:05:16 2016
committer Commit bot <commit-bot@chromium.org> Thu Jun 30 08:07:54 2016
tree c765633fb97486f7f3c5f401b58caa30a6a70dc0
parent 0c412e85eb68bd357bb73ff3bc424b0d7f4dcb89

Make maybeConvertNeutral pure virtual

The body of SVGInterpolationType::maybeConvertNeutral is NOTREACHED()
with a comment that the function must be overridden except in a particular
condition. This patch changes maybeConvertNeutral to be pure virtual and moves
the NOTREACHED implementation into SVGTransformListInterpolationType,
which is the only subclass that meets the specified condition. This brings this
function into line with the approach taken in
SVGInterpolationType::appliedSVGValue and crrev.com/1959993002.

Review-Url: https://codereview.chromium.org/2109373002
Cr-Commit-Position: refs/heads/master@{#403116}