Fix nits in content/browser/appcache/

content/browser/appcache/appcache_quota_client.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 CONTENT_BROWSER_APPCACHE_APPCACHE_QUOTA_CLIENT_H_
 #define CONTENT_BROWSER_APPCACHE_APPCACHE_QUOTA_CLIENT_H_
 
 #include <deque>
 #include <map>
 #include <string>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/appcache/appcache_storage.h"
 #include "content/common/content_export.h"
 #include "net/base/completion_callback.h"
 #include "webkit/browser/quota/quota_client.h"
 #include "webkit/browser/quota/quota_task.h"
 #include "webkit/common/quota/quota_types.h"
 
 namespace content {
 class AppCacheQuotaClientTest;
-}
-
-namespace content {
-
 class AppCacheServiceImpl;
 class AppCacheStorageImpl;
-class AppCacheQuotaClientTest;
 
 // A QuotaClient implementation to integrate the appcache service
 // with the quota management system. The QuotaClient interface is
 // used on the IO thread by the quota manager. This class deletes
 // itself when both the quota manager and the appcache service have
 // been destroyed.
 class AppCacheQuotaClient : public quota::QuotaClient {
  public:
   typedef std::deque<base::Closure> RequestQueue;
 
@@ skipping 49 matching lines @@
   AppCacheServiceImpl* service_;
   bool appcache_is_ready_;
   bool quota_manager_is_destroyed_;
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheQuotaClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_QUOTA_CLIENT_H_