Remove deprecated TabContentsDelegate::OpenURLFromTab variant

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 8a4bb7ffd853119d9504cb0b16dc6e9fa892220e..9f6e2eb75f005b021e03f6e87b2f41c1f67eb882 100644
--- a/content/browser/renderer_host/render_view_host_delegate.h
+++ b/content/browser/renderer_host/render_view_host_delegate.h
@@ -41,6 +41,7 @@ class ListValue;
 namespace content {
 class BrowserContext;
 struct FileChooserParams;
+struct Referrer;
 struct RendererPreferences;
 }
 
@@ -272,7 +273,7 @@ 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) {}