MacViews: Remove constrained window dependencies for certificate viewer.

components/constrained_window/native_web_contents_modal_dialog_manager_views.cc

Index: components/constrained_window/native_web_contents_modal_dialog_manager_views.cc
diff --git a/components/constrained_window/native_web_contents_modal_dialog_manager_views.cc b/components/constrained_window/native_web_contents_modal_dialog_manager_views.cc
index dca66733a35f971af93be521c6980d0579b9f966..45e3a43e49088650c3d330cc1b27303e6fcf5329 100644
--- a/components/constrained_window/native_web_contents_modal_dialog_manager_views.cc
+++ b/components/constrained_window/native_web_contents_modal_dialog_manager_views.cc
@@ -98,10 +98,7 @@ void NativeWebContentsModalDialogManagerViews::Show() {
         widget->GetNativeWindow()->parent()));
   }
 #endif
-  // Host may be NULL during tab drag on Views/Win32.
-  if (host_)
-    constrained_window::UpdateWebContentsModalDialogPosition(widget, host_);
-  widget->Show();
+  ShowWidget(widget);
   Focus();
 
 #if defined(USE_AURA)
@@ -119,7 +116,7 @@ void NativeWebContentsModalDialogManagerViews::Hide() {
   suspend.reset(new wm::SuspendChildWindowVisibilityAnimations(
       widget->GetNativeWindow()->parent()));
 #endif
-  widget->Hide();
+  HideWidget(widget);
 }
 
 void NativeWebContentsModalDialogManagerViews::Close() {
@@ -194,6 +191,19 @@ gfx::NativeWindow NativeWebContentsModalDialogManagerViews::dialog() {
   return dialog_;
 }
 
+void NativeWebContentsModalDialogManagerViews::ShowWidget(
+    views::Widget* widget) {
+  // |host_| may be NULL during tab drag on Views/Win32.
+  if (host_)
+    constrained_window::UpdateWebContentsModalDialogPosition(widget, host_);
+  widget->Show();
+}
+
+void NativeWebContentsModalDialogManagerViews::HideWidget(
+    views::Widget* widget) {
+  widget->Hide();
+}
+
 views::Widget* NativeWebContentsModalDialogManagerViews::GetWidget(
     gfx::NativeWindow dialog) {
   views::Widget* widget = views::Widget::GetWidgetForNativeWindow(dialog);