Add two small features to the HttpCache for benchmarking/debugging....

net/http/http_cache.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.
 
 // This file declares a HttpTransactionFactory implementation that can be
 // layered on top of another HttpTransactionFactory to add HTTP caching.  The
 // caching logic follows RFC 2616 (any exceptions are called out in the code).
 //
 // The HttpCache takes a disk_cache::Backend as a parameter, and uses that for
 // the cache storage.
@@ skipping 30 matching lines @@
   ~HttpCache();
 
   // The cache mode of operation.
   enum Mode {
     // Normal mode just behaves like a standard web cache.
     NORMAL = 0,
     // Record mode caches everything for purposes of offline playback.
     RECORD,
     // Playback mode replays from a cache without considering any
     // standard invalidations.
-    PLAYBACK
+    PLAYBACK,
+    // Disables reads and writes from the cache.
+    // Equivalent to setting LOAD_DISABLE_CACHE on every request.
+    DISABLE
   };
 
   // Initialize the cache from the directory where its data is stored. The
   // disk cache is initialized lazily (by CreateTransaction) in this case. If
   // |cache_size| is zero, a default value will be calculated automatically.
   HttpCache(ProxyService* proxy_service,
             const std::wstring& cache_dir,
             int cache_size);
 
   // Initialize the cache from the directory where its data is stored. The
@@ skipping 34 matching lines @@
                                 const HttpResponseInfo* response_info,
                                 bool skip_transient_headers);
 
   // Get/Set the cache's mode.
   void set_mode(Mode value) { mode_ = value; }
   Mode mode() { return mode_; }
 
   void set_type(CacheType type) { type_ = type; }
   CacheType type() { return type_; }
 
+  // Close All Idle Sockets.  This is for debugging.
+  void CloseIdleConnections();
+
  private:
 
   // Types --------------------------------------------------------------------
 
   class Transaction;
   friend class Transaction;
 
   typedef std::list<Transaction*> TransactionList;
 
   struct ActiveEntry {
@@ skipping 63 matching lines @@
   scoped_ptr<PlaybackCacheMap> playback_cache_map_;
 
   RevocableStore transactions_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpCache);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_CACHE_H_