Pass along the referrer policy (renderer side)

content/browser/renderer_host/render_view_host_delegate.h

Index: content/browser/renderer_host/render_view_host_delegate.h
diff --git a/content/browser/renderer_host/render_view_host_delegate.h b/content/browser/renderer_host/render_view_host_delegate.h
index e0faaa3925b0c79a5687c55fbef5a8c95a74db67..2da5aa0214ca2b67633ab1f070c815e6e33469f2 100644
--- a/content/browser/renderer_host/render_view_host_delegate.h
+++ b/content/browser/renderer_host/render_view_host_delegate.h
@@ -42,6 +42,7 @@ class ListValue;
 namespace content {
 class BrowserContext;
 struct FileChooserParams;
+struct Referrer;
 struct RendererPreferences;
 }
 
@@ -273,7 +274,7 @@ class CONTENT_EXPORT RenderViewHostDelegate : public IPC::Channel::Listener {
 
   // The page wants to open a URL with the specified disposition.
   virtual void RequestOpenURL(const GURL& url,
-                              const GURL& referrer,
+                              const content::Referrer& referrer,
                               WindowOpenDisposition disposition,
                               int64 source_frame_id) {}