Implement WebPrescientNetworking to trigger preconnect from Blink

chrome/renderer/prerender/prerender_dispatcher.cc

Index: chrome/renderer/prerender/prerender_dispatcher.cc
diff --git a/chrome/renderer/prerender/prerender_dispatcher.cc b/chrome/renderer/prerender/prerender_dispatcher.cc
index 7739fb5ec3d483418e6c2b417e49723935afc9bc..b36909f0b0a1735c755b62d6b29763e419aad917 100644
--- a/chrome/renderer/prerender/prerender_dispatcher.cc
+++ b/chrome/renderer/prerender/prerender_dispatcher.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "chrome/common/prerender_messages.h"
+#include "chrome/common/render_messages.h"
 #include "chrome/renderer/prerender/prerender_extra_data.h"
 #include "content/public/common/referrer.h"
 #include "content/public/renderer/render_thread.h"
@@ -106,6 +107,14 @@ bool PrerenderDispatcher::OnControlMessageReceived(
   return handled;
 }
 
+void PrerenderDispatcher::preconnect(
+    const WebKit::WebURL& url,
+    WebKit::WebPreconnectMotivation motivation) {
+  content::RenderThread::Get()->Send(new ChromeViewHostMsg_Preconnect(
+      url, motivation
+      ));

[gavinp, 2013/05/09 14:49:16]

These should move up to the previous line.

[kouhei (in TOK), 2013/05/10 01:59:09]

Done.

+}
+
 void PrerenderDispatcher::add(const WebPrerender& prerender) {
   const PrerenderExtraData& extra_data =
       PrerenderExtraData::FromPrerender(prerender);