Prevent browser-side hit testing when page popup is selected

content/browser/renderer_host/render_widget_host_delegate.h

Index: content/browser/renderer_host/render_widget_host_delegate.h
diff --git a/content/browser/renderer_host/render_widget_host_delegate.h b/content/browser/renderer_host/render_widget_host_delegate.h
index 46d7a6aaddd2e260802afc35767d7b891699dad4..abea25d83ac4ed8f4a0e4babce94e7742134cd0a 100644
--- a/content/browser/renderer_host/render_widget_host_delegate.h
+++ b/content/browser/renderer_host/render_widget_host_delegate.h
@@ -214,6 +214,10 @@ class CONTENT_EXPORT RenderWidgetHostDelegate {
   // Allow the delegate to handle the cursor update. Returns true if handled.
   virtual bool OnUpdateDragCursor();
 
+  // Returns true if the provided RenderWidgetHostImpl matches the current
+  // RenderWidgetHost on the main frame, and false otherwise.
+  virtual bool IsWidgetForMainFrame(RenderWidgetHostImpl*);
+
   // Inner WebContents Helpers -------------------------------------------------
   //
   // These functions are helpers in managing a hierharchy of WebContents