[AF Sync] Run integration tests for wallet metadata USS

This CL disables the parametrization for USSWalletData and enables it
for USSWalletMetadata. As a result integration tests will always use
the USS implementation for wallet data (which is rolling out to Stable)
and test both implementations for wallet metadata.

All the tests pass (hurray!).

Bug: 853688
Change-Id: I3b09d3fcf9626585f7581777340f46d14bf34733
Reviewed-on: https://chromium-review.googlesource.com/c/1406990
Commit-Queue: Jan Krcal <jkrcal@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622343}
1 file changed