Implement WebPrescientNetworking to trigger preconnect from Blink

chrome/renderer/chrome_content_renderer_client.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/renderer/chrome_content_renderer_client.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/path_service.h"
@@ skipping 22 matching lines @@
 #include "chrome/renderer/content_settings_observer.h"
 #include "chrome/renderer/extensions/chrome_v8_context.h"
 #include "chrome/renderer/extensions/chrome_v8_extension.h"
 #include "chrome/renderer/extensions/dispatcher.h"
 #include "chrome/renderer/extensions/extension_helper.h"
 #include "chrome/renderer/extensions/miscellaneous_bindings.h"
 #include "chrome/renderer/extensions/resource_request_policy.h"
 #include "chrome/renderer/external_extension.h"
 #include "chrome/renderer/loadtimes_extension_bindings.h"
 #include "chrome/renderer/net/net_error_helper.h"
+#include "chrome/renderer/net/prescient_networking_dispatcher.h"
 #include "chrome/renderer/net/renderer_net_predictor.h"
 #include "chrome/renderer/net_benchmarking_extension.h"
 #include "chrome/renderer/one_click_signin_agent.h"
 #include "chrome/renderer/page_load_histograms.h"
 #include "chrome/renderer/pepper/chrome_ppapi_interfaces.h"
 #include "chrome/renderer/pepper/pepper_helper.h"
 #include "chrome/renderer/playback_extension.h"
 #include "chrome/renderer/plugins/plugin_placeholder.h"
 #include "chrome/renderer/plugins/plugin_uma.h"
 #include "chrome/renderer/prerender/prerender_dispatcher.h"
@@ skipping 154 matching lines @@
   g_current_client = this;
 }
 
 ChromeContentRendererClient::~ChromeContentRendererClient() {
   g_current_client = NULL;
 }
 
 void ChromeContentRendererClient::RenderThreadStarted() {
   chrome_observer_.reset(new ChromeRenderProcessObserver(this));
   extension_dispatcher_.reset(new extensions::Dispatcher());
+  prescient_networking_dispatcher_.reset(new PrescientNetworkingDispatcher());
   net_predictor_.reset(new RendererNetPredictor());
   spellcheck_.reset(new SpellCheck());
   visited_link_slave_.reset(new components::VisitedLinkSlave());
 #if defined(FULL_SAFE_BROWSING)
   phishing_classifier_.reset(safe_browsing::PhishingClassifierFilter::Create());
 #endif
   prerender_dispatcher_.reset(new prerender::PrerenderDispatcher());
 
   RenderThread* thread = RenderThread::Get();
 
@@ skipping 784 matching lines @@
 
 bool ChromeContentRendererClient::IsLinkVisited(unsigned long long link_hash) {
   return visited_link_slave_->IsVisited(link_hash);
 }
 
 void ChromeContentRendererClient::PrefetchHostName(const char* hostname,
                                                    size_t length) {
   net_predictor_->Resolve(hostname, length);
 }
 
+WebKit::WebPrescientNetworking*
+ChromeContentRendererClient::PrescientNetworking() {
+  return prescient_networking_dispatcher_.get();
+}
+
 bool ChromeContentRendererClient::ShouldOverridePageVisibilityState(
     const content::RenderView* render_view,
     WebKit::WebPageVisibilityState* override_state) const {
   if (!prerender::PrerenderHelper::IsPrerendering(render_view))
     return false;
 
   *override_state = WebKit::WebPageVisibilityStatePrerender;
   return true;
 }
 
@@ skipping 145 matching lines @@
 
   if (container->element().shadowHost().isNull())
     return false;
 
   WebString tag_name = container->element().shadowHost().tagName();
   return tag_name.equals(WebString::fromUTF8(kWebViewTagName)) ||
     tag_name.equals(WebString::fromUTF8(kAdViewTagName));
 }
 
 }  // namespace chrome