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

webkit/browser/quota/quota_manager.h

Index: webkit/browser/quota/quota_manager.h
diff --git a/webkit/browser/quota/quota_manager.h b/webkit/browser/quota/quota_manager.h
index 5481b2094d725a3c58c8e4152af9738abd6dfb66..064d548b6744aa752a53be6495c8ae6d24e63bf6 100644
--- a/webkit/browser/quota/quota_manager.h
+++ b/webkit/browser/quota/quota_manager.h
@@ -434,52 +434,6 @@ struct QuotaManagerDeleter {
   }
 };
 
-// The proxy may be called and finally released on any thread.
-class WEBKIT_STORAGE_BROWSER_EXPORT QuotaManagerProxy
-    : public base::RefCountedThreadSafe<QuotaManagerProxy> {
- public:
-  typedef QuotaManager::GetUsageAndQuotaCallback
-      GetUsageAndQuotaCallback;
-
-  virtual void RegisterClient(QuotaClient* client);
-  virtual void NotifyStorageAccessed(QuotaClient::ID client_id,
-                                     const GURL& origin,
-                                     StorageType type);
-  virtual void NotifyStorageModified(QuotaClient::ID client_id,
-                                     const GURL& origin,
-                                     StorageType type,
-                                     int64 delta);
-  virtual void NotifyOriginInUse(const GURL& origin);
-  virtual void NotifyOriginNoLongerInUse(const GURL& origin);
-
-  virtual void SetUsageCacheEnabled(QuotaClient::ID client_id,
-                                    const GURL& origin,
-                                    StorageType type,
-                                    bool enabled);
-  virtual void GetUsageAndQuota(
-      base::SequencedTaskRunner* original_task_runner,
-      const GURL& origin,
-      StorageType type,
-      const GetUsageAndQuotaCallback& callback);
-
-  // This method may only be called on the IO thread.
-  // It may return NULL if the manager has already been deleted.
-  QuotaManager* quota_manager() const;
-
- protected:
-  friend class QuotaManager;
-  friend class base::RefCountedThreadSafe<QuotaManagerProxy>;
-
-  QuotaManagerProxy(QuotaManager* manager,
-                    base::SingleThreadTaskRunner* io_thread);
-  virtual ~QuotaManagerProxy();
-
-  QuotaManager* manager_;  // only accessed on the io thread
-  scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(QuotaManagerProxy);
-};
-
 }  // namespace quota
 
 #endif  // WEBKIT_BROWSER_QUOTA_QUOTA_MANAGER_H_