Inform disk cache of WebKit memory cache hits.

net/disk_cache/entry_impl.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 NET_DISK_CACHE_ENTRY_IMPL_H_
 #define NET_DISK_CACHE_ENTRY_IMPL_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_log.h"
@@ skipping 28 matching lines @@
                    CompletionCallback* callback);
   int WriteDataImpl(int index, int offset, net::IOBuffer* buf, int buf_len,
                     CompletionCallback* callback, bool truncate);
   int ReadSparseDataImpl(int64 offset, net::IOBuffer* buf, int buf_len,
                          CompletionCallback* callback);
   int WriteSparseDataImpl(int64 offset, net::IOBuffer* buf, int buf_len,
                           CompletionCallback* callback);
   int GetAvailableRangeImpl(int64 offset, int len, int64* start);
   void CancelSparseIOImpl();
   int ReadyForSparseIOImpl(CompletionCallback* callback);
+  void UpdateRankForExternalCacheHitImpl();
 
   inline CacheEntryBlock* entry() {
     return &entry_;
   }
 
   inline CacheRankingsBlock* rankings() {
     return &node_;
   }
 
   uint32 GetHash();
@@ skipping 82 matching lines @@
                         bool truncate);
   virtual int ReadSparseData(int64 offset, net::IOBuffer* buf, int buf_len,
                              net::CompletionCallback* completion_callback);
   virtual int WriteSparseData(int64 offset, net::IOBuffer* buf, int buf_len,
                               net::CompletionCallback* completion_callback);
   virtual int GetAvailableRange(int64 offset, int len, int64* start,
                                 CompletionCallback* callback);
   virtual bool CouldBeSparse() const;
   virtual void CancelSparseIO();
   virtual int ReadyForSparseIO(net::CompletionCallback* completion_callback);
+  virtual void UpdateRankForExternalCacheHit();
 
  private:
   enum {
      kNumStreams = 3
   };
   class UserBuffer;
 
   virtual ~EntryImpl();
 
   // Do all the work for ReadDataImpl and WriteDataImpl.  Implemented as
@@ skipping 88 matching lines @@
   scoped_ptr<SparseControl> sparse_;  // Support for sparse entries.
 
   net::BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(EntryImpl);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_ENTRY_IMPL_H_