Revert of Convert network hints to Mojo

chromecast/browser/cast_content_browser_client.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_CAST_CONTENT_BROWSER_CLIENT_H_
 #define CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 10 matching lines @@
 }
 
 namespace media {
 class BrowserCdmFactory;
 }
 
 namespace metrics {
 class MetricsService;
 }
 
-namespace network_hints {
-class NetworkHintsImpl;
-}
-
 namespace chromecast {
 class CastService;
 
 namespace media {
 class MediaPipelineBackend;
 class MediaPipelineBackendManager;
 struct MediaPipelineDeviceParams;
 class MediaResourceTracker;
 class VideoPlaneController;
 }
@@ skipping 122 matching lines @@
 #endif  // defined(OS_ANDROID) && defined(VIDEO_HOLE)
 
  protected:
   CastContentBrowserClient();
 
   URLRequestContextFactory* url_request_context_factory() const {
     return url_request_context_factory_.get();
   }
 
  private:
-  void AddNetworkHintsImpl(int render_process_id,
-                           net::URLRequestContext* context);
+  void AddNetworkHintsMessageFilter(int render_process_id,
+                                    net::URLRequestContext* context);
 
   net::X509Certificate* SelectClientCertificateOnIOThread(
       GURL requesting_url,
       int render_process_id);
 
 #if !defined(OS_ANDROID)
   // Returns the crash signal FD corresponding to the current process type.
   int GetCrashSignalFD(const base::CommandLine& command_line);
 
   // Creates a CrashHandlerHost instance for the given process type.
   breakpad::CrashHandlerHostLinux* CreateCrashHandlerHost(
       const std::string& process_type);
 
   // A static cache to hold crash_handlers for each process_type
   std::map<std::string, breakpad::CrashHandlerHostLinux*> crash_handlers_;
 #endif  // !defined(OS_ANDROID)
 
   // Created by CastContentBrowserClient but owned by BrowserMainLoop.
   CastBrowserMainParts* cast_browser_main_parts_;
   std::unique_ptr<URLRequestContextFactory> url_request_context_factory_;
 
-  std::unique_ptr<network_hints::NetworkHintsImpl> network_hints_;
-
   DISALLOW_COPY_AND_ASSIGN(CastContentBrowserClient);
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_