Adding DiskBasedCertCache to HttpCache (+UMA).

net/http/http_cache_transaction.h

 // Copyright (c) 2012 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 HttpCache::Transaction, a private class of HttpCache so
 // it should only be included by http_cache.cc
 
 #ifndef NET_HTTP_HTTP_CACHE_TRANSACTION_H_
 #define NET_HTTP_HTTP_CACHE_TRANSACTION_H_
 
@@ skipping 249 matching lines @@
   int DoCacheWriteResponseComplete(int result);
   int DoCacheReadMetadata();
   int DoCacheReadMetadataComplete(int result);
   int DoCacheQueryData();
   int DoCacheQueryDataComplete(int result);
   int DoCacheReadData();
   int DoCacheReadDataComplete(int result);
   int DoCacheWriteData(int num_bytes);
   int DoCacheWriteDataComplete(int result);
 
+  // These functions are involved in a field trial testing storing certificates
+  // in seperate entries from the HttpResponseInfo.
+  void ReadCertChain();
+  void WriteCertChain();
+
   // Sets request_ and fields derived from it.
   void SetRequest(const BoundNetLog& net_log, const HttpRequestInfo* request);
 
   // Returns true if the request should be handled exclusively by the network
   // layer (skipping the cache entirely).
   bool ShouldPassThrough();
 
   // Called to begin reading from the cache.  Returns network error code.
   int BeginCacheRead();
 
@@ skipping 175 matching lines @@
 
   BeforeNetworkStartCallback before_network_start_callback_;
   BeforeProxyHeadersSentCallback before_proxy_headers_sent_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(Transaction);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_CACHE_TRANSACTION_H_