[Sync] Refactor non-frontend DTC to handle new API properly.

chrome/browser/sync/api/sync_change_processor.h

Index: chrome/browser/sync/api/sync_change_processor.h
diff --git a/chrome/browser/sync/api/sync_change_processor.h b/chrome/browser/sync/api/sync_change_processor.h
index edc7c0faa55a4da9d4ad65ff4fdad692a5596f8c..a68dc594776a037787d02b593c4755049e596acc 100644
--- a/chrome/browser/sync/api/sync_change_processor.h
+++ b/chrome/browser/sync/api/sync_change_processor.h
@@ -1,4 +1,4 @@
-  // Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -21,6 +21,9 @@ typedef std::vector<SyncChange> SyncChangeList;
 // An interface for services that handle receiving SyncChanges.
 class SyncChangeProcessor {
  public:
+  SyncChangeProcessor();
+  virtual ~SyncChangeProcessor();
+
   // Process a list of SyncChanges.
   // Returns: A default SyncError (IsSet() == false) if no errors were
   //          encountered, and a filled SyncError (IsSet() == true)
@@ -32,8 +35,6 @@ class SyncChangeProcessor {
       const tracked_objects::Location& from_here,
       const SyncChangeList& change_list) = 0;
  protected:
-  virtual ~SyncChangeProcessor();
 };
 
-
 #endif  // CHROME_BROWSER_SYNC_API_SYNC_CHANGE_PROCESSOR_H_