Refactor net predictor to use ResourceThrottles

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.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 "chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h"
 
 #include <stdint.h>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 13 matching lines @@
 #include "chrome/browser/mod_pagespeed/mod_pagespeed_metrics.h"
 #include "chrome/browser/net/resource_prefetch_predictor_observer.h"
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/prerender/prerender_manager_factory.h"
 #include "chrome/browser/prerender/prerender_resource_throttle.h"
 #include "chrome/browser/prerender/prerender_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/renderer_host/chrome_navigation_data.h"
+#include "chrome/browser/renderer_host/predictor_resource_throttle.h"
 #include "chrome/browser/renderer_host/safe_browsing_resource_throttle.h"
 #include "chrome/browser/renderer_host/thread_hop_resource_throttle.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/signin/chrome_signin_helper.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/ui/login/login_handler.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/features.h"
@@ skipping 567 matching lines @@
   }
 #endif
 
   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
   if (info->GetVisibilityState() == blink::WebPageVisibilityStatePrerender) {
     throttles->push_back(new prerender::PrerenderResourceThrottle(request));
   }
 
   if (ThreadHopResourceThrottle::IsEnabled())
     throttles->push_back(new ThreadHopResourceThrottle);
+
+  std::unique_ptr<PredictorResourceThrottle> predictor_throttle =
+      PredictorResourceThrottle::MaybeCreate(request, io_data);
+  if (predictor_throttle)
+    throttles->push_back(predictor_throttle.release());
 }
 
 bool ChromeResourceDispatcherHostDelegate::ShouldForceDownloadResource(
     const GURL& url, const std::string& mime_type) {
 #if defined(ENABLE_EXTENSIONS)
   // Special-case user scripts to get downloaded instead of viewed.
   return extensions::UserScript::IsURLUserScript(url, mime_type);
 #else
   return false;
 #endif
@@ skipping 206 matching lines @@
   data_reduction_proxy::DataReductionProxyData* data_reduction_proxy_data =
       data_reduction_proxy::DataReductionProxyData::GetData(*request);
   // DeepCopy the DataReductionProxyData from the URLRequest to prevent the
   // URLRequest and DataReductionProxyData from both having ownership of the
   // same object. This copy will be shortlived as it will be deep copied again
   // when content makes a clone of NavigationData for the UI thread.
   if (data_reduction_proxy_data)
     data->SetDataReductionProxyData(data_reduction_proxy_data->DeepCopy());
   return data;
 }