Replace the GURL referrer field of OpenURLParams with a content::Referrer

content/browser/tab_contents/tab_contents.cc

Index: content/browser/tab_contents/tab_contents.cc
diff --git a/content/browser/tab_contents/tab_contents.cc b/content/browser/tab_contents/tab_contents.cc
index 72c8be0e7ee20bbe5fc78a1ed0e676841ed0292b..34fb11fdcf201c675209e845dd23349b6057e934 100644
--- a/content/browser/tab_contents/tab_contents.cc
+++ b/content/browser/tab_contents/tab_contents.cc
@@ -576,8 +576,8 @@ TabContents* TabContents::OpenURL(const GURL& url,
                                   content::PageTransition transition) {
   // For specifying a referrer, use the version of OpenURL taking OpenURLParams.
   DCHECK(referrer.is_empty());
-  return OpenURL(OpenURLParams(url, referrer, disposition, transition,
-                               false));
+  return OpenURL(OpenURLParams(url, content::Referrer(), disposition,
+                               transition, false));
 }
 
 TabContents* TabContents::OpenURL(const OpenURLParams& params) {
@@ -1767,7 +1767,7 @@ void TabContents::RequestOpenURL(const GURL& url,
     transition_type = render_manager_.web_ui()->link_transition_type();
   } else {
     new_contents = OpenURL(OpenURLParams(
-        url, referrer.url, disposition, content::PAGE_TRANSITION_LINK,
+        url, referrer, disposition, content::PAGE_TRANSITION_LINK,
         true /* is_renderer_initiated */));
   }
   if (new_contents) {
@@ -1775,7 +1775,7 @@ void TabContents::RequestOpenURL(const GURL& url,
     FOR_EACH_OBSERVER(TabContentsObserver, observers_,
                       DidOpenRequestedURL(new_contents,
                                           url,
-                                          referrer.url,
+                                          referrer,
                                           disposition,
                                           transition_type,
                                           source_frame_id));