Remove ChromotingHostContext from DnsBlackholeChecker.

remoting/host/simple_host_process.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.
 //
 // This is an application of a minimal host process in a Chromoting
 // system. It serves the purpose of gluing different pieces together
 // to make a functional host process for testing.
 //
 // It peforms the following functionality:
 // 1. Connect to the GTalk network and register the machine as a host.
@@ skipping 235 matching lines @@
     env->GetVar(base::env_vars::kHome, &home_path);
     return FilePath(home_path).Append(kDefaultConfigPath);
 #endif
   }
 
   void StartHost() {
     signal_strategy_.reset(new XmppSignalStrategy(
         context_.url_request_context_getter(),
         xmpp_login_, xmpp_auth_token_, xmpp_auth_service_));
     scoped_ptr<DnsBlackholeChecker> dns_blackhole_checker(
-        new DnsBlackholeChecker(&context_, kDefaultHostTalkGadgetPrefix));
+        new DnsBlackholeChecker(context_.url_request_context_getter(),
+                                kDefaultHostTalkGadgetPrefix));
     signaling_connector_.reset(new SignalingConnector(
         signal_strategy_.get(), &context_, dns_blackhole_checker.Pass(),
         base::Bind(&SimpleHost::OnAuthFailed, base::Unretained(this))));
 
     if (fake_) {
       desktop_environment_factory_.reset(new FakeDesktopEnvironmentFactory());
     } else {
       desktop_environment_factory_.reset(new DesktopEnvironmentFactory(
           context_.input_task_runner(), context_.ui_task_runner()));
     }
@@ skipping 196 matching lines @@
         max_port < 0 || max_port > 65535) {
       LOG(ERROR) << "Invalid max-port value: " << max_port
                  << ". Expected integer in range [0, 65535].";
       return 1;
     }
     simple_host.network_settings()->max_port = max_port;
   }
 
   return simple_host.Run();
 }