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

chrome/browser/ui/webui/options/sync_setup_handler.h

 // Copyright (c) 2012 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_UI_WEBUI_OPTIONS_SYNC_SETUP_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_SYNC_SETUP_HANDLER_H_
 
 #include <memory>
 
 #include "base/gtest_prod_util.h"
@@ skipping 37 matching lines @@
   void FocusUI() override;
 
   static void GetStaticLocalizedValues(
       base::DictionaryValue* localized_strings,
       content::WebUI* web_ui);
 
   // Initializes the sync setup flow and shows the setup UI.
   void OpenSyncSetup(bool creating_supervised_user);
 
   // Shows advanced configuration dialog without going through sign in dialog.
-  // Kicks the sync backend if necessary with showing spinner dialog until it
+  // Kicks the sync engine if necessary with showing spinner dialog until it
   // gets ready.
   void OpenConfigureSync();
 
   // Terminates the sync setup flow.
   void CloseSyncSetup();
 
  protected:
   friend class SyncSetupHandlerTest;
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest,
-                           DisplayConfigureWithBackendDisabledAndCancel);
+                           DisplayConfigureWithEngineDisabledAndCancel);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, HandleSetupUIWhenSyncDisabled);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, SelectCustomEncryption);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, ShowSyncSetupWhenNotSignedIn);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, SuccessfullySetPassphrase);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, TestSyncEverything);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, TestSyncNothing);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, TestSyncAllManually);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, TestPassphraseStillRequired);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, TestSyncIndividualTypes);
   FRIEND_TEST_ALL_PREFIXES(SyncSetupHandlerTest, TurnOnEncryptAll);
@@ skipping 49 matching lines @@
   // A utility function to call before actually showing setup dialog. Makes sure
   // that a new dialog can be shown and sets flag that setup is in progress.
   bool PrepareSyncSetup();
 
   // Displays spinner-only UI indicating that something is going on in the
   // background.
   // TODO(kochi): better to show some message that the user can understand what
   // is running in the background.
   void DisplaySpinner();
 
-  // Displays an error dialog which shows timeout of starting the sync backend.
+  // Displays an error dialog which shows timeout of starting the sync engine.
   void DisplayTimeout();
 
   // Closes the associated sync settings page.
   void CloseUI();
 
   // Returns true if this object is the active login object.
   bool IsActiveLogin() const;
 
   // If a wizard already exists, return true. Otherwise, return false.
   bool IsExistingWizardPresent();
 
   // If a wizard already exists, focus it and return true.
   bool FocusExistingWizardIfPresent();
 
   // Display the configure sync UI. If |passphrase_failed| is true, the account
   // requires a passphrase and one hasn't been provided or it was invalid.
   void DisplayConfigureSync(bool passphrase_failed);
 
-  // Helper object used to wait for the sync backend to startup.
+  // Helper object used to wait for the sync engine to startup.
   std::unique_ptr<SyncStartupTracker> sync_startup_tracker_;
 
   // Prevents Sync from running until configuration is complete.
   std::unique_ptr<syncer::SyncSetupInProgressHandle> sync_blocker_;
 
   // Set to true whenever the sync configure UI is visible. This is used to tell
   // what stage of the setup wizard the user was in and to update the UMA
   // histograms in the case that the user cancels out.
   bool configuring_sync_;
 
-  // The OneShotTimer object used to timeout of starting the sync backend
+  // The OneShotTimer object used to timeout of starting the sync engine
   // service.
-  std::unique_ptr<base::OneShotTimer> backend_start_timer_;
+  std::unique_ptr<base::OneShotTimer> engine_start_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSetupHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_SYNC_SETUP_HANDLER_H_