Prevent browser-side hit testing when page popup is selected

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index c49fd75dd5313aa834dba77551869198e3c1fba8..c89fa4bfd0496b61167e9b6772c0efa4ab7f1582 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2545,6 +2545,11 @@ bool WebContentsImpl::OnUpdateDragCursor() {
   return false;
 }
 
+bool WebContentsImpl::IsWidgetForMainFrame(
+    RenderWidgetHostImpl* render_widget_host) {
+  return render_widget_host == GetMainFrame()->GetRenderWidgetHost();
+}
+
 BrowserAccessibilityManager*
     WebContentsImpl::GetRootBrowserAccessibilityManager() {
   RenderFrameHostImpl* rfh = GetMainFrame();