Add support for content::Referrer to prerender

chrome/browser/prerender/prerender_contents.cc

Index: chrome/browser/prerender/prerender_contents.cc
diff --git a/chrome/browser/prerender/prerender_contents.cc b/chrome/browser/prerender/prerender_contents.cc
index 967f5c8d4f8583d01c1e71858f753ba20620d5b5..dc8ad5259b8b8cb3f86fbfb38058c22f27c5b316 100644
--- a/chrome/browser/prerender/prerender_contents.cc
+++ b/chrome/browser/prerender/prerender_contents.cc
@@ -63,7 +63,7 @@ class PrerenderContentsFactoryImpl : public PrerenderContents::Factory {
  public:
   virtual PrerenderContents* CreatePrerenderContents(
       PrerenderManager* prerender_manager, PrerenderTracker* prerender_tracker,
-      Profile* profile, const GURL& url, const GURL& referrer,
+      Profile* profile, const GURL& url, const content::Referrer& referrer,
       Origin origin, uint8 experiment_id) OVERRIDE {
     return new PrerenderContents(prerender_manager, prerender_tracker, profile,
                                  url, referrer, origin, experiment_id);
@@ -73,7 +73,7 @@ class PrerenderContentsFactoryImpl : public PrerenderContents::Factory {
 PrerenderContents::PendingPrerenderData::PendingPrerenderData(
     Origin origin,
     const GURL& url,
-    const GURL& referrer)
+    const content::Referrer& referrer)
     : origin(origin),
       url(url),
       referrer(referrer) {
@@ -145,7 +145,7 @@ class PrerenderContents::TabContentsDelegateImpl
 
 void PrerenderContents::AddPendingPrerender(Origin origin,
                                             const GURL& url,
-                                            const GURL& referrer) {
+                                            const content::Referrer& referrer) {
   pending_prerender_list_.push_back(
       PendingPrerenderData(origin, url, referrer));
 }
@@ -180,7 +180,7 @@ PrerenderContents::PrerenderContents(
     PrerenderTracker* prerender_tracker,
     Profile* profile,
     const GURL& url,
-    const GURL& referrer,
+    const content::Referrer& referrer,
     Origin origin,
     uint8 experiment_id)
     : prerender_manager_(prerender_manager),
@@ -327,7 +327,7 @@ void PrerenderContents::StartPrerendering(
     transition = content::PAGE_TRANSITION_TYPED;
   new_contents->controller().LoadURL(
       prerender_url_,
-      content::Referrer(referrer_, WebKit::WebReferrerPolicyDefault),
+      referrer_,
       transition, std::string());
 }