Remove useless blocking handle from sync integ tests.

chrome/browser/sync/test/integration/profile_sync_service_harness.h

Index: chrome/browser/sync/test/integration/profile_sync_service_harness.h
diff --git a/chrome/browser/sync/test/integration/profile_sync_service_harness.h b/chrome/browser/sync/test/integration/profile_sync_service_harness.h
index b4b82eb24c0a4f98daa69dad2a1b7ed36558a8a8..61c8662463e2dbc1c032a782f78a5db62096a68c 100644
--- a/chrome/browser/sync/test/integration/profile_sync_service_harness.h
+++ b/chrome/browser/sync/test/integration/profile_sync_service_harness.h
@@ -20,10 +20,6 @@ namespace browser_sync {
 class ProfileSyncService;
 }  // namespace browser_sync
 
-namespace syncer {
-class SyncSetupInProgressHandle;
-}  // namespace syncer
-
 // An instance of this class is basically our notion of a "sync client" for
 // automation purposes. It harnesses the ProfileSyncService member of the
 // profile passed to it on construction and automates certain things like setup
@@ -126,9 +122,6 @@ class ProfileSyncServiceHarness {
   // available), annotated with |message|. Useful for logging.
   std::string GetClientInfoString(const std::string& message) const;
 
-  // Signals that sync setup is complete, and that PSS may begin syncing.
-  void FinishSyncSetup();
-
  private:
   ProfileSyncServiceHarness(
       Profile* profile,
@@ -148,9 +141,6 @@ class ProfileSyncServiceHarness {
   // ProfileSyncService object associated with |profile_|.
   browser_sync::ProfileSyncService* service_;
 
-  // Prevents Sync from running until configuration is complete.
-  std::unique_ptr<syncer::SyncSetupInProgressHandle> sync_blocker_;
-
   // Credentials used for GAIA authentication.
   std::string username_;
   std::string password_;