Polymer: remove already applied parts of chromium.patch
Polymer: remove already applied parts of chromium.patch

R=dpapad@chromium.org
BUG=none
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1863293002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#385581}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk