Disable inspector/layers/layer-canvas-log.html on Windows and Linux.

This test depends on the exact output of zlib, which may vary depending
on which CPU optimizations it's able to use.

BUG=430557
TBR=vsevik@chromium.org

Review URL: https://codereview.chromium.org/702183002

git-svn-id: svn://svn.chromium.org/blink/trunk@184881 bbb929c8-8fbe-4397-9dbb-9b2b20218538