[Sync] SyncEngine 1.5: Fix all backend references in PSS.

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_SYNC_TEST_INTEGRATION_PROFILE_SYNC_SERVICE_HARNESS_H_
 #define CHROME_BROWSER_SYNC_TEST_INTEGRATION_PROFILE_SYNC_SERVICE_HARNESS_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 64 matching lines @@
   bool AwaitGroupSyncCycleCompletion(
       const std::vector<ProfileSyncServiceHarness*>& partners);
 
   // Blocks the caller until every client in |clients| completes its ongoing
   // sync cycle and all the clients' progress markers match.  Note: Use this
   // method when more than one client makes local change(s), and more than one
   // client is waiting to receive those changes.
   static bool AwaitQuiescence(
       const std::vector<ProfileSyncServiceHarness*>& clients);
 
-  // Blocks the caller until the sync backend is initialized or some end state
-  // (e.g., auth error) is reached. Returns true if and only if the backend
-  // initialized successfully. See ProfileSyncService's IsBackendInitialized()
-  // method for the definition of backend initialization.
-  bool AwaitBackendInitialization();
+  // Blocks the caller until the sync engine is initialized or some end state
+  // (e.g., auth error) is reached. Returns true if and only if the engine
+  // initialized successfully. See ProfileSyncService's IsEngineInitialized()
+  // method for the definition of engine initialization.
+  bool AwaitEngineInitialization();
 
   // Blocks the caller until sync setup is complete. Returns true if and only
   // if sync setup completed successfully. See syncer::SyncService's
   // IsSyncActive() method for the definition of what successful means here.
   bool AwaitSyncSetupCompletion();
 
   // Returns the ProfileSyncService member of the sync client.
   browser_sync::ProfileSyncService* service() const { return service_; }
 
   // Returns the debug name for this profile. Used for logging.
@@ skipping 62 matching lines @@
   // all refresh tokens used in the tests are different.
   int oauth2_refesh_token_number_;
 
   // Used for logging.
   const std::string profile_debug_name_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncServiceHarness);
 };
 
 #endif  // CHROME_BROWSER_SYNC_TEST_INTEGRATION_PROFILE_SYNC_SERVICE_HARNESS_H_