GitLab

Shadowed variables can make code harder to read. Don't support them
in the content layer.

BUG=794619

This CL was uploaded by git cl split.

R=boliu@chromium.org

Change-Id: Iefa946eb8500d28baf16b7e7519303cc29233794
Reviewed-on: https://chromium-review.googlesource.com/923349Reviewed-by: Bo <boliu@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537565}