[Sync] Convert sessions/ directory to ModelEnumSet

chrome/browser/sync/glue/sync_backend_host.h

 // Copyright (c) 2011 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_GLUE_SYNC_BACKEND_HOST_H_
 #define CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 178 matching lines @@
   void Shutdown(bool sync_disabled);
 
   // Changes the set of data types that are currently being synced.
   // The ready_task will be run when configuration is done with the
   // set of all types that failed configuration (i.e., if its argument
   // is non-empty, then an error was encountered).
   virtual void ConfigureDataTypes(
       const syncable::ModelTypeSet& types_to_add,
       const syncable::ModelTypeSet& types_to_remove,
       sync_api::ConfigureReason reason,
-      base::Callback<void(const syncable::ModelTypeSet&)> ready_task,
+      base::Callback<void(syncable::ModelEnumSet)> ready_task,
       bool enable_nigori);
 
   // Makes an asynchronous call to syncer to switch to config mode. When done
   // syncer will call us back on FinishConfigureDataTypes.
   virtual void StartConfiguration(const base::Closure& callback);
 
   // Turns on encryption of all present and future sync data.
   virtual void EnableEncryptEverything();
 
   // Activates change processing for the given data type.  This must
@@ skipping 200 matching lines @@
     // Called to handle updating frontend thread components whenever we may
     // need to alert the frontend that the backend is intialized.
     void HandleInitializationCompletedOnFrontendLoop(
         const WeakHandle<JsBackend>& js_backend,
         bool success);
 
     // Called when configuration of the Nigori node has completed as
     // part of the initialization process.
     void HandleNigoriConfigurationCompletedOnFrontendLoop(
         const WeakHandle<JsBackend>& js_backend,
-        const syncable::ModelTypeSet& failed_configuration_types);
+        syncable::ModelEnumSet failed_configuration_types);
 
    private:
     friend class base::RefCountedThreadSafe<SyncBackendHost::Core>;
     friend class SyncBackendHostForProfileSyncTest;
 
     virtual ~Core();
 
     // Invoked when initialization of syncapi is complete and we can start
     // our timer.
     // This must be called from the thread on which SaveChanges is intended to
@@ skipping 108 matching lines @@
   InitializationState initialization_state_;
 
  private:
   struct PendingConfigureDataTypesState {
     PendingConfigureDataTypesState();
     ~PendingConfigureDataTypesState();
 
     // The ready_task will be run when configuration is done with the
     // set of all types that failed configuration (i.e., if its
     // argument is non-empty, then an error was encountered).
-    base::Callback<void(const syncable::ModelTypeSet&)> ready_task;
+    base::Callback<void(syncable::ModelEnumSet)> ready_task;
 
     // The set of types that we are waiting to be initially synced in a
     // configuration cycle.
     syncable::ModelTypeSet types_to_add;
 
     // Additional details about which types were added.
     syncable::ModelTypeSet added_types;
     sync_api::ConfigureReason reason;
   };
 
@@ skipping 40 matching lines @@
 
   // UI-thread cache of the last SyncSessionSnapshot received from syncapi.
   scoped_ptr<sessions::SyncSessionSnapshot> last_snapshot_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncBackendHost);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_H_