[Sync] Maintain a global_id mapping to update UserEvents that references navigations

components/browser_sync/profile_sync_service.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 COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 #define COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 295 matching lines @@
       syncer::ProtocolEventObserver* observer) override;
   void RemoveProtocolEventObserver(
       syncer::ProtocolEventObserver* observer) override;
   void AddTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) override;
   void RemoveTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) override;
   base::WeakPtr<syncer::JsController> GetJsController() override;
   void GetAllNodes(const base::Callback<void(std::unique_ptr<base::ListValue>)>&
                        callback) override;
+  syncer::GlobalIdMapper* GetGlobalIdMapper() const override;
 
   // Add a sync type preference provider. Each provider may only be added once.
   void AddPreferenceProvider(syncer::SyncTypePreferenceProvider* provider);
   // Remove a sync type preference provider. May only be called for providers
   // that have been added. Providers must not remove themselves while being
   // called back.
   void RemovePreferenceProvider(syncer::SyncTypePreferenceProvider* provider);
   // Check whether a given sync type preference provider has been added.
   bool HasPreferenceProvider(
       syncer::SyncTypePreferenceProvider* provider) const;
@@ skipping 566 matching lines @@
   base::WeakPtrFactory<ProfileSyncService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(const syncer::SyncProtocolError& error);
 
 }  // namespace browser_sync
 
 #endif  // COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_