Add brotli content-encoding filter.

net/url_request/url_request_test_util.cc

 // 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.
 
 #include "net/url_request/url_request_test_util.h"
 
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 382 matching lines @@
     HttpRequestHeaders* headers) {
   int req_id = request->identifier();
   InitRequestStatesIfNew(req_id);
   event_order_[req_id] += "OnBeforeSendHeaders\n";
   EXPECT_TRUE(next_states_[req_id] & kStageBeforeSendHeaders) <<
       event_order_[req_id];
   next_states_[req_id] =
       kStageSendHeaders |
       kStageCompletedError;  // request canceled by delegate
   before_send_headers_count_++;
+  last_headers_.CopyFrom(*headers);
   return OK;
 }
 
 void TestNetworkDelegate::OnBeforeSendProxyHeaders(
     URLRequest* request,
     const ProxyInfo& proxy_info,
     HttpRequestHeaders* headers) {
   ++observed_before_proxy_headers_sent_callbacks_;
   last_observed_proxy_ = proxy_info.proxy_server().host_port_pair();
 }
@@ skipping 224 matching lines @@
   URLRequestJob* job = main_intercept_job_;
   main_intercept_job_ = NULL;
   return job;
 }
 
 void TestJobInterceptor::set_main_intercept_job(URLRequestJob* job) {
   main_intercept_job_ = job;
 }
 
 }  // namespace net