[Sync] Move ChangeRecord into its own file (change_record.{h,cc})

chrome/browser/sync/glue/change_processor.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_CHANGE_PROCESSOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_CHANGE_PROCESSOR_H_
 #pragma once
 
 #include "chrome/browser/sync/glue/sync_backend_host.h"
-#include "chrome/browser/sync/internal_api/sync_manager.h"
+#include "chrome/browser/sync/internal_api/change_record.h"
 
 class Profile;
 
 namespace browser_sync {
 
 class ModelAssociator;
 class UnrecoverableErrorHandler;
 
 // An interface used to apply changes from the sync model to the browser's
 // native model.  This does not currently distinguish between model data types.
@@ skipping 12 matching lines @@
   // |StartImpl|.
   void Start(Profile* profile, sync_api::UserShare* share_handle);
   void Stop();
   virtual bool IsRunning() const;
 
   // Changes have been applied to the backend model and are ready to be
   // applied to the frontend model. See syncapi.h for detailed instructions on
   // how to interpret and process |changes|.
   virtual void ApplyChangesFromSyncModel(
       const sync_api::BaseTransaction* trans,
-      const sync_api::SyncManager::ChangeRecord* changes,
-      int change_count) = 0;
+      const sync_api::ImmutableChangeRecordList& changes) = 0;
 
   // The changes found in ApplyChangesFromSyncModel may be too slow to be
   // performed while holding a [Read/Write]Transaction lock or may interact
   // with another thread, which might itself be waiting on the transaction lock,
   // putting us at risk of deadlock.
   // This function is called once the transactional lock is released and it is
   // safe to perform inter-thread or slow I/O operations. Note that not all
   // datatypes need this, so we provide an empty default version.
   virtual void CommitChangesFromSyncModel();
 
@@ skipping 32 matching lines @@
   // The sync model we are processing changes from. Non-NULL when |running_| is
   // true.
   sync_api::UserShare* share_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(ChangeProcessor);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_CHANGE_PROCESSOR_H_