Chrome style plugin: enable virtual specifier checks for Gmock objects in //remoting

Previously, the plugin completely skipped virtual specifier checks on
Gmock objects since it wasn't smart enough to filter out warnings caused
by Gmock macros. In preparation for making the plugin smarter, this CL
fixes existing virtual specifier warnings in //remoting.

This CL was uploaded by git cl split.

[email protected]

Bug: 837148
Change-Id: Ia3674401a07b9c701e43965f99bb07b8f23b5a93
Reviewed-on: https://chromium-review.googlesource.com/1031173
Commit-Queue: Daniel Cheng <[email protected]>
Reviewed-by: Joe Downing <[email protected]>
Cr-Commit-Position: refs/heads/master@{#554133}
5 files changed