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

chrome/browser/ui/views/frame/opaque_browser_frame_view_layout_unittest.cc

 // Copyright 2013 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/frame/opaque_browser_frame_view_layout.h"
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/layout_constants.h"
@@ skipping 149 matching lines @@
     window_title_->SetVisible(delegate_->ShouldShowWindowTitle());
     window_title_->SetEnabledColor(SK_ColorWHITE);
     window_title_->SetSubpixelRenderingEnabled(false);
     window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
     window_title_->set_id(VIEW_ID_WINDOW_TITLE);
     root_view_->AddChildView(window_title_);
   }
 
   void AddNewAvatarButton() {
     new_avatar_button_ =
-        new views::MenuButton(nullptr, base::string16(), nullptr, false);
+        new views::MenuButton(base::string16(), nullptr, false);
     new_avatar_button_->set_id(VIEW_ID_NEW_AVATAR_BUTTON);
     root_view_->AddChildView(new_avatar_button_);
     delegate_->set_show_avatar(true);
   }
 
   int CaptionY() const {
     return delegate_->IsMaximized() ?
         0 : views::NonClientFrameView::kFrameShadowThickness;
   }
 
@@ skipping 256 matching lines @@
 
   for (int i = 0; i < 2; ++i) {
     root_view_->Layout();
     SCOPED_TRACE(i == 0 ? "Window is restored" : "Window is maximized");
     ExpectCaptionButtons(false, 0);
     ExpectTabStripAndMinimumSize(false);
     ExpectAvatar();
     delegate_->set_maximized(true);
   }
 }