[Sync] Removing duplicated includes between cc and h files.

components/sync/protocol/sync_protocol_error.cc

 // Copyright (c) 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.
 
 #include "components/sync/protocol/sync_protocol_error.h"
 
-#include <string>
-
 #include "base/logging.h"
-#include "base/values.h"
 
 namespace syncer {
 #define ENUM_CASE(x) \
   case x:            \
     return #x;       \
     break;
 
 const char* GetSyncErrorTypeString(SyncProtocolErrorType type) {
   switch (type) {
     ENUM_CASE(SYNC_SUCCESS);
@@ skipping 37 matching lines @@
 base::DictionaryValue* SyncProtocolError::ToValue() const {
   base::DictionaryValue* value = new base::DictionaryValue();
   value->SetString("ErrorType", GetSyncErrorTypeString(error_type));
   value->SetString("ErrorDescription", error_description);
   value->SetString("url", url);
   value->SetString("action", GetClientActionString(action));
   return value;
 }
 
 }  // namespace syncer