Flush the SimpleBackendImpl's SWP in tests.

net/disk_cache/simple/simple_backend_impl.h

 // Copyright (c) 2013 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 NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_
 #define NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_
 
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 46 matching lines @@
   // Sets the maximum size for the total amount of data stored by this instance.
   bool SetMaxSize(int max_bytes);
 
   // Returns the maximum file size permitted in this backend.
   int GetMaxFileSize() const;
 
   // Removes |entry| from the |active_entries_| set, forcing future Open/Create
   // operations to construct a new object.
   void OnDeactivated(const SimpleEntryImpl* entry);
 
+  // Flush our SequencedWorkerPool.
+  static void FlushWorkerPoolForTesting();
+
   // Backend:
   virtual net::CacheType GetCacheType() const OVERRIDE;
   virtual int32 GetEntryCount() const OVERRIDE;
   virtual int OpenEntry(const std::string& key, Entry** entry,
                         const CompletionCallback& callback) OVERRIDE;
   virtual int CreateEntry(const std::string& key, Entry** entry,
                           const CompletionCallback& callback) OVERRIDE;
   virtual int DoomEntry(const std::string& key,
                         const CompletionCallback& callback) OVERRIDE;
   virtual int DoomAllEntries(const CompletionCallback& callback) OVERRIDE;
@@ skipping 96 matching lines @@
   // TODO(gavinp): Store the entry_hash in SimpleEntryImpl, and index this map
   // by hash. This will save memory, and make IndexReadyForDoom easier.
   EntryMap active_entries_;
 
   net::NetLog* const net_log_;
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_