[sync] Move exponential backoff tests / infrastructure into a new file
This is another in a series of CLs to clean up ProfileSyncServiceHarness.
It does the following:
1) Moves the sync integration tests for exponential backoff into their
own file.
2) Moves the test infrastructure used solely by these tests out of
ProfileSyncServiceHarness and into the test file.
3) Reduces StatusChangeChecker to an interface, and moves its callback
mechanism into ProfileSyncServiceHarness, where it can be used with
any arbitrary method of PSSH. Other one-off users of SCC aren't forced
to implement a callback, and can directly override IsExitConditionSatisfied.
BUG=323380
TEST=sync_integration_tests:SyncExponentialBackoffTest*
[email protected]
Review URL: https://codereview.chromium.org/109853004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241350 0039d316-1c4b-4281-b951-d872f2087c98
8 files changed
