Quota: Factor out (Mock)QuotaManagerProxy into its own file for readability

webkit/browser/appcache/appcache_service.h

 // 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.
 
 #ifndef WEBKIT_BROWSER_APPCACHE_APPCACHE_SERVICE_H_
 #define WEBKIT_BROWSER_APPCACHE_APPCACHE_SERVICE_H_
 
 #include <map>
 #include <set>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
 #include "webkit/browser/appcache/appcache_storage.h"
+#include "webkit/browser/quota/quota_manager_proxy.h"
 #include "webkit/browser/webkit_storage_browser_export.h"
 #include "webkit/common/appcache/appcache_interfaces.h"
 
 namespace net {
 class URLRequestContext;
 }  // namespace net
 
 namespace base {
 class FilePath;
 class MessageLoopProxy;
 }
 
 namespace quota {
-class QuotaManagerProxy;
 class SpecialStoragePolicy;
 }
 
 namespace appcache {
 
 class AppCacheBackendImpl;
 class AppCacheExecutableHandlerFactory;
 class AppCacheQuotaClient;
 class AppCachePolicy;
 
@@ skipping 187 matching lines @@
   bool force_keep_session_state_;
   bool was_reinitialized_;
   ObserverList<Observer> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheService);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_BROWSER_APPCACHE_APPCACHE_SERVICE_H_