Cleanup: Remove unneeded forward declarations in chrome/browser/sync.

chrome/browser/sync/internal_api/change_record.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_INTERNAL_API_CHANGE_RECORD_H_
 #define CHROME_BROWSER_SYNC_INTERNAL_API_CHANGE_RECORD_H_
 
+#include <vector>
+
 #include "base/basictypes.h"
 #include "base/memory/linked_ptr.h"
 #include "chrome/browser/sync/protocol/password_specifics.pb.h"
 #include "chrome/browser/sync/protocol/sync.pb.h"
 #include "chrome/browser/sync/util/immutable.h"
 
 namespace base {
 class DictionaryValue;
 }  // namespace base
 
 namespace sync_api {
 
-class BaseTransaction;
-
 // TODO(zea): One day get passwords playing nicely with the rest of encryption
 // and get rid of this.
 class ExtraPasswordChangeRecordData {
  public:
   ExtraPasswordChangeRecordData();
   explicit ExtraPasswordChangeRecordData(
       const sync_pb::PasswordSpecificsData& data);
   virtual ~ExtraPasswordChangeRecordData();
 
   // Transfers ownership of the DictionaryValue to the caller.
@@ skipping 23 matching lines @@
   int64 id;
   Action action;
   sync_pb::EntitySpecifics specifics;
   linked_ptr<ExtraPasswordChangeRecordData> extra;
 };
 
 typedef std::vector<ChangeRecord> ChangeRecordList;
 
 typedef browser_sync::Immutable<ChangeRecordList> ImmutableChangeRecordList;
 
-} // namespace sync_api
+}  // namespace sync_api
 
 #endif  // CHROME_BROWSER_SYNC_INTERNAL_API_CHANGE_RECORD_H_