[UI Views] Don't allow a ButtonListener and a MenuButtonListener

chrome/browser/ui/views/autofill/autofill_dialog_views.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/autofill/autofill_dialog_views.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 594 matching lines @@
 bool AutofillDialogViews::SectionContainer::ShouldForwardEvent(
     const ui::LocatedEvent& event) {
   // Always forward events on the label bar.
   return forward_mouse_events_ || event.y() <= child_at(0)->bounds().bottom();
 }
 
 // AutofillDialogViews::SuggestedButton ----------------------------------------
 
 AutofillDialogViews::SuggestedButton::SuggestedButton(
     views::MenuButtonListener* listener)
-    : views::MenuButton(NULL, base::string16(), listener, false) {
+    : views::MenuButton(base::string16(), listener, false) {
   const int kFocusBorderWidth = 1;
   SetBorder(views::Border::CreateEmptyBorder(kMenuButtonTopInset,
                                              kFocusBorderWidth,
                                              kMenuButtonBottomInset,
                                              kFocusBorderWidth));
   gfx::Insets insets = GetInsets();
   insets += gfx::Insets(-kFocusBorderWidth, -kFocusBorderWidth,
                         -kFocusBorderWidth, -kFocusBorderWidth);
   SetFocusPainter(
       views::Painter::CreateDashedFocusPainterWithInsets(insets));
@@ skipping 1278 matching lines @@
 AutofillDialogViews::DetailsGroup::DetailsGroup(DialogSection section)
     : section(section),
       container(NULL),
       manual_input(NULL),
       suggested_info(NULL),
       suggested_button(NULL) {}
 
 AutofillDialogViews::DetailsGroup::~DetailsGroup() {}
 
 }  // namespace autofill