Makes the maximize/restore button handling

ash/shell/window_type_launcher.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 "ash/shell/window_type_launcher.h"
 
 #include "ash/shell_window_ids.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell/panel_window.h"
 #include "ash/shell/toplevel_window.h"
@@ skipping 287 matching lines @@
 }
 
 bool WindowTypeLauncher::CanResize() const {
   return true;
 }
 
 string16 WindowTypeLauncher::GetWindowTitle() const {
   return ASCIIToUTF16("Examples: Window Builder");
 }
 
+bool WindowTypeLauncher::CanMaximize() const {
+  return true;
+}
+
 void WindowTypeLauncher::ButtonPressed(views::Button* sender,
                                        const views::Event& event) {
   if (sender == create_button_) {
     ToplevelWindow::CreateParams params;
     params.can_resize = true;
     params.can_maximize = true;
     ToplevelWindow::CreateToplevelWindow(params);
   } else if (sender == panel_button_) {
     PanelWindow::CreatePanelWindow(gfx::Rect());
   } else if (sender == create_nonresizable_button_) {
@@ skipping 51 matching lines @@
   menu_runner_.reset(new MenuRunner(root));
   if (menu_runner_->RunMenuAt(GetWidget(), NULL, gfx::Rect(point, gfx::Size()),
         MenuItemView::TOPLEFT,
         MenuRunner::HAS_MNEMONICS) == MenuRunner::MENU_DELETED)
     return;
 }
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace shell
 }  // namespace ash