Converted waitForSyncInitialized and syncCacheGUID to compile under EG2

Bug: 922813
Change-Id: If3b4b92ae39c3051dcc5804f7221d0dfaa5bf218
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1625748
Commit-Queue: Maksym Onufriienko <monufriienko@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663380}
4 files changed