components/sync/ Introduce test_support group target

This CL introduces a new "test_support" target in
components/sync/, so that other code can just depend on this
instead of all the individual "test_support_x" targets.
This lets us move the individual targets into their own build files
(so far, this was done for test_support_base, _js, and _driver),
without having to update the universe each time.

for mechanical changes in components/*/

Bug: 947443
Change-Id: Ibe87bd82caab07b562c052a230f32539f8874792
Commit-Queue: Marc Treib <>
Reviewed-by: Sylvain Defresne <>
Reviewed-by: Mikel Astiz <>
Cr-Commit-Position: refs/heads/master@{#653962}
24 files changed