Hand craft an A/B test of SDCH compression...

net/url_request/url_request_http_job.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.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 75 matching lines @@
 
   bool read_in_progress_;
 
   // An URL for an SDCH dictionary as suggested in a Get-Dictionary HTTP header.
   GURL sdch_dictionary_url_;
 
   // Keep a reference to the url request context to be sure it's not deleted
   // before us.
   scoped_refptr<URLRequestContext> context_;
 
+  // Indicated if an SDCH dictionary was advertised, and hence an SDCH
+  // compressed response is expected.  We use this to help detect (accidental?)
+  // proxy corruption of a response, which sometimes marks SDCH content as
+  // having no content encoding <oops>.
+  bool sdch_dictionary_advertised_;
+
+  // For SDCH latency experiments, when we are able to do SDCH, we may enable
+  // either an SDCH latency test xor a pass through test.  The following bools
+  // indicate what we decided on for this instance.
+  bool sdch_test_activated_;  // Advertising a dictionary for sdch.
+  bool sdch_test_control_;    // Not even accepting-content sdch.
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestHttpJob);
 };
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_