GitLab

All sync data type toggles are moved into one polymer
element.

Note: There is no structural change in this CL.
In a follow-up CL the toggles are moved to a subpage
which is accessible from the sync page.

Bug: 912598
Change-Id: I7d07a7051d34840d94a1229c7dae92fa2c1e680c
Reviewed-on: https://chromium-review.googlesource.com/c/1367648
Commit-Queue: Thomas Tangl <tangltom@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615490}