GitLab

This CL continues the process of separating the strings into specific
files. Strings used by both Chrome OS and Chrome browser settings sync
control subpage and settings signout subpage are removed from
setting_strings.grdp and added into shared_settings_strings.grdp.
This effort was started in parent 2042733.

Bug: 967883
Change-Id: I2c41bd3589f357bd5b2496f4eaeecccae2e00ebd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2044478
Commit-Queue: Nnamdi Theodore Johnson-kanu <tjohnsonkanu@google.com>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742802}