Cleanup: Make quota dispatcher code independent from WebKit types

webkit/quota/quota_types.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 WEBKIT_QUOTA_QUOTA_TYPES_H_
 #define WEBKIT_QUOTA_QUOTA_TYPES_H_
 #pragma once
 
 #include <deque>
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback_old.h"
 #include "base/stl_util.h"
 
 class GURL;
 
 namespace quota {
 
 enum StorageType {
   kStorageTypeTemporary,
   kStorageTypePersistent,
   kStorageTypeUnknown,
 };
 
-// TODO(tzik): Add assertions to
-// content/browser/renderer_host/quota_dispatcher_host.cc
-// ref) third_party/WebKit/Source/WebCore/dom/ExceptionCode.h,
+// The numbers should match with the error code defined in
+// third_party/WebKit/Source/WebCore/dom/ExceptionCode.h.
 enum QuotaStatusCode {
   kQuotaStatusOk = 0,
   kQuotaErrorNotSupported = 9,          // NOT_SUPPORTED_ERR
   kQuotaErrorInvalidModification = 13,  // INVALID_MODIFICATION_ERR
   kQuotaErrorInvalidAccess = 15,        // INVALID_ACCESS_ERR
   kQuotaErrorAbort = 20,                // ABORT_ERR
   kQuotaStatusUnknown = -1,
 };
 
 // Common callback types that are used throughout in the quota module.
@@ skipping 232 matching lines @@
                           const std::string&,
                           StorageType, int64> HostUsageCallbackMap;
 typedef CallbackQueueMap4<HostQuotaCallback*, std::string,
                           QuotaStatusCode,
                           const std::string&,
                           StorageType, int64> HostQuotaCallbackMap;
 
 }  // namespace quota
 
 #endif  // WEBKIT_QUOTA_QUOTA_TYPES_H_