Http cache: Implement a timeout for the cache lock.

net/http/mock_http_cache.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.
 
 // This is a mock of the http cache and related testing classes. To be fair, it
 // is not really a mock http cache given that it uses the real implementation of
 // the http cache, but it has fake implementations of all required components,
 // so it is useful for unit tests at the http layer.
 
 #ifndef NET_HTTP_MOCK_HTTP_CACHE_H_
@@ skipping 159 matching lines @@
   net::HttpCache* http_cache() { return &http_cache_; }
 
   MockNetworkLayer* network_layer() {
     return static_cast<MockNetworkLayer*>(http_cache_.network_layer());
   }
   MockDiskCache* disk_cache();
 
   // Wrapper around http_cache()->CreateTransaction(net::DEFAULT_PRIORITY...)
   int CreateTransaction(scoped_ptr<net::HttpTransaction>* trans);
 
+  // Wrapper to bypass the cache lock for new transactions.
+  void BypassCacheLock();
+
   // Helper function for reading response info from the disk cache.
   static bool ReadResponseInfo(disk_cache::Entry* disk_entry,
                                net::HttpResponseInfo* response_info,
                                bool* response_truncated);
 
   // Helper function for writing response info into the disk cache.
   static bool WriteResponseInfo(disk_cache::Entry* disk_entry,
                                 const net::HttpResponseInfo* response_info,
                                 bool skip_transient_headers,
                                 bool response_truncated);
@@ skipping 51 matching lines @@
  private:
   int Result() { return fail_ ? net::ERR_FAILED : net::OK; }
 
   scoped_ptr<disk_cache::Backend>* backend_;
   net::CompletionCallback callback_;
   bool block_;
   bool fail_;
 };
 
 #endif  // NET_HTTP_MOCK_HTTP_CACHE_H_