Disk cache: Remove remaining uses of RankingsNode.pointer....

net/disk_cache/backend_impl.h

 // Copyright (c) 2006-2008 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.
 
 // See net/disk_cache/disk_cache.h for the public interface of the cache.
 
 #ifndef NET_DISK_CACHE_BACKEND_IMPL_H_
 #define NET_DISK_CACHE_BACKEND_IMPL_H_
 
 #include "base/hash_tables.h"
@@ skipping 87 matching lines @@
   // Permanently deletes an entry, but still keeps track of it.
   void InternalDoomEntry(EntryImpl* entry);
 
   // Removes all references to this entry.
   void RemoveEntry(EntryImpl* entry);
 
   // This method must be called whenever an entry is released for the last time.
   // |address| is the cache address of the entry.
   void CacheEntryDestroyed(Addr address);
 
-  // Returns true if the data stored by the provided |rankings| points to an
-  // open entry, false otherwise.
-  bool IsOpen(CacheRankingsBlock* rankings) const;
+  // If the data stored by the provided |rankings| points to an open entry,
+  // returns a pointer to that entry, oterwise returns NULL. Note that this

[Nicolas Sylvain, 2009/07/30 18:37:28]

otherwise

+  // method does NOT increase the ref counter for the entry.
+  EntryImpl* GetOpenEntry(CacheRankingsBlock* rankings) const;
 
   // Returns the id being used on this run of the cache.
   int32 GetCurrentEntryId() const;
 
   // Returns the maximum size for a file to reside on the cache.
   int MaxFileSize() const;
 
   // A user data block is being created, extended or truncated.
   void ModifyStorageSize(int32 old_size, int32 new_size);
 
@@ skipping 157 matching lines @@
 
   DISALLOW_EVIL_CONSTRUCTORS(BackendImpl);
 };
 
 // Returns the prefered max cache size given the available disk space.
 int PreferedCacheSize(int64 available);
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_BACKEND_IMPL_H_