Revert of Add a Restore() method to ValueStore and make StorageAPI use it

chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h

Index: chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h
diff --git a/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h b/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h
index 4cd9e37d8b183172dded552f7e4cc8d4f58dbe18..64909ac83f786fd205613b92c3ff9b31d4f8c946 100644
--- a/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h
+++ b/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h
@@ -12,14 +12,9 @@
 #include "chrome/browser/extensions/api/storage/settings_observer.h"
 #include "chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h"
 #include "chrome/browser/extensions/api/storage/value_store_cache.h"
-#include "sync/api/syncable_service.h"
 
 namespace base {
 class FilePath;
-}
-
-namespace syncer {
-class SyncableService;
 }
 
 namespace extensions {
@@ -40,7 +35,8 @@
       const base::FilePath& profile_path);
   virtual ~SyncOrLocalValueStoreCache();
 
-  syncer::SyncableService* GetSyncableService(syncer::ModelType type) const;
+  SettingsBackend* GetAppBackend() const;
+  SettingsBackend* GetExtensionBackend() const;
 
   // ValueStoreCache implementation:
 
@@ -57,7 +53,6 @@
                         const base::FilePath& profile_path);
 
   settings_namespace::Namespace settings_namespace_;
-  bool initialized_;
   scoped_ptr<SettingsBackend> app_backend_;
   scoped_ptr<SettingsBackend> extension_backend_;