Adds DNS prefetch support to Chromecast.

chromecast/browser/url_request_context_factory.h

 // Copyright 2014 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 CHROMECAST_BROWSER_URL_REQUEST_CONTEXT_FACTORY_H_
 #define CHROMECAST_BROWSER_URL_REQUEST_CONTEXT_FACTORY_H_
 
 #include "content/public/browser/content_browser_client.h"
 #include "net/http/http_network_session.h"
 
@@ skipping 30 matching lines @@
       content::BrowserContext* browser_context,
       content::ProtocolHandlerMap* protocol_handlers,
       content::URLRequestInterceptorScopedVector request_interceptors);
   net::URLRequestContextGetter* GetMainGetter();
   net::URLRequestContextGetter* GetMediaGetter();
 
   CastNetworkDelegate* app_network_delegate() const {
     return app_network_delegate_.get();
   }
 
+  net::HostResolver* host_resolver() const {
+    return host_resolver_.get();
+  }
+
   // Initialize the CastNetworkDelegate objects. This needs to be done
   // after the CastService is created, but before any URL requests are made.
   void InitializeNetworkDelegates();
 
  private:
   class URLRequestContextGetter;
   class MainURLRequestContextGetter;
   friend class URLRequestContextGetter;
   friend class MainURLRequestContextGetter;
 
@@ skipping 47 matching lines @@
   scoped_ptr<net::URLRequestJobFactory> main_job_factory_;
 
   bool media_dependencies_initialized_;
   scoped_ptr<net::HttpTransactionFactory> media_transaction_factory_;
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_URL_REQUEST_CONTEXT_FACTORY_H_