Revert of Convert network hints to Mojo

chrome/renderer/chrome_content_renderer_client.h

 // 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.
 
 #ifndef CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 189 matching lines @@
   static bool IsNaClAllowed(const GURL& manifest_url,
                             const GURL& app_url,
                             bool is_nacl_unrestricted,
                             const extensions::Extension* extension,
                             blink::WebPluginParams* params);
 #endif
 
   std::unique_ptr<ChromeRenderThreadObserver> chrome_observer_;
   std::unique_ptr<web_cache::WebCacheImpl> web_cache_impl_;
 
+  std::unique_ptr<network_hints::PrescientNetworkingDispatcher>
+      prescient_networking_dispatcher_;
+
 #if defined(ENABLE_SPELLCHECK)
   std::unique_ptr<SpellCheck> spellcheck_;
 #endif
   std::unique_ptr<visitedlink::VisitedLinkSlave> visited_link_slave_;
   std::unique_ptr<safe_browsing::PhishingClassifierFilter> phishing_classifier_;
   std::unique_ptr<subresource_filter::RulesetDealer>
       subresource_filter_ruleset_dealer_;
   std::unique_ptr<prerender::PrerenderDispatcher> prerender_dispatcher_;
 #if defined(ENABLE_WEBRTC)
   scoped_refptr<WebRtcLoggingMessageFilter> webrtc_logging_message_filter_;
 #endif
 #if defined(ENABLE_PRINT_PREVIEW)
   std::unique_ptr<ChromePDFPrintClient> pdf_print_client_;
 #endif
 #if defined(ENABLE_PLUGINS)
   std::set<std::string> allowed_camera_device_origins_;
   std::set<std::string> allowed_compositor_origins_;
 #endif
 };
 
 #endif  // CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_