[Sync] Move ConfigureDataTypes logic into DataTypeManagerImpl.

components/sync/engine/sync_engine.h

 // Copyright 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_SYNC_ENGINE_SYNC_ENGINE_H_
 #define COMPONENTS_SYNC_ENGINE_SYNC_ENGINE_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 113 matching lines @@
 
   // Kick off shutdown procedure. Attempts to cut short any long-lived or
   // blocking sync thread tasks so that the shutdown on sync thread task that
   // we're about to post won't have to wait very long.
   virtual void StopSyncingForShutdown() = 0;
 
   // See the implementation and Core::DoShutdown for details.
   // Must be called *after* StopSyncingForShutdown.
   virtual void Shutdown(ShutdownReason reason) = 0;
 
-  // 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).
-  // Returns the set of types that are ready to start without needing any
-  // further sync activity.
-  // ModelTypeConfigurer implementation.
-  ModelTypeSet ConfigureDataTypes(
-      ConfigureReason reason,
-      const DataTypeConfigStateMap& config_state_map,
-      const base::Callback<void(ModelTypeSet, ModelTypeSet)>& ready_task,
-      const base::Callback<void()>& retry_callback) override = 0;
-
   // Turns on encryption of all present and future sync data.
   virtual void EnableEncryptEverything() = 0;
 
   // Obtain a handle to the UserShare needed for creating transactions. Should
   // not be called before we signal initialization is complete with
   // OnBackendInitialized().
   virtual UserShare* GetUserShare() const = 0;
 
   // Called from any thread to obtain current status information in detailed or
   // summarized form.
@@ skipping 54 matching lines @@
   // See SyncManager::OnCookieJarChanged.
   virtual void OnCookieJarChanged(bool account_mismatch, bool empty_jar) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncEngine);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_ENGINE_SYNC_ENGINE_H_