MacViews: Remove constrained window dependencies for certificate viewer.

components/constrained_window/constrained_window_views.cc

Index: components/constrained_window/constrained_window_views.cc
diff --git a/components/constrained_window/constrained_window_views.cc b/components/constrained_window/constrained_window_views.cc
index def5232fc9782603559d380c6499264f1c8ac6b5..bfb7f2ccc48254705713abfc060fc831c7bf83dd 100644
--- a/components/constrained_window/constrained_window_views.cc
+++ b/components/constrained_window/constrained_window_views.cc
@@ -141,11 +141,29 @@ views::Widget* ShowWebModalDialogViews(
   content::WebContents* web_contents =
       guest_view::GuestViewBase::GetTopLevelWebContents(initiator_web_contents);
   views::Widget* widget = CreateWebModalDialogViews(dialog, web_contents);
-  web_modal::WebContentsModalDialogManager::FromWebContents(web_contents)
-      ->ShowModalDialog(widget->GetNativeWindow());
+  web_modal::WebContentsModalDialogManager* manager =
+      web_modal::WebContentsModalDialogManager::FromWebContents(web_contents);
+  manager->ShowModalDialog(widget->GetNativeWindow());
   return widget;
 }
 
+#if defined(OS_MACOSX)
+views::Widget* ShowWebModalDialogWithOverlayViews(
+    views::WidgetDelegate* dialog,
+    content::WebContents* initiator_web_contents) {
+  DCHECK(constrained_window_views_client);
+  // For embedded WebContents, use the embedder's WebContents for constrained
+  // window.
+  content::WebContents* web_contents =
+      guest_view::GuestViewBase::GetTopLevelWebContents(initiator_web_contents);
+  views::Widget* widget = CreateWebModalDialogViews(dialog, web_contents);
+  web_modal::WebContentsModalDialogManager* manager =
+      web_modal::WebContentsModalDialogManager::FromWebContents(web_contents);
+  manager->ShowModalDialogWithOverlay(widget->GetNativeWindow());
+  return widget;
+}
+#endif
+
 views::Widget* CreateWebModalDialogViews(views::WidgetDelegate* dialog,
                                          content::WebContents* web_contents) {
   DCHECK_EQ(ui::MODAL_TYPE_CHILD, dialog->GetModalType());