Allow a Views client to provide a default frameview for window widgets.

ash/shell/shell_main.cc

 // Copyright (c) 2011 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/launcher/launcher_types.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_factory.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell/toplevel_window.h"
 #include "ash/wm/window_util.h"
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/i18n/icu_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "ui/aura/root_window.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/compositor/test/compositor_test_support.h"
 #include "ui/views/test/test_views_delegate.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 
 namespace {
 
+class ShellViewsDelegate : public views::TestViewsDelegate {
+ public:
+  ShellViewsDelegate() {}
+  virtual ~ShellViewsDelegate() {}
+
+  // Overridden from views::TestViewsDelegate:
+  virtual views::NonClientFrameView* CreateDefaultNonClientFrameView(
+      views::Widget* widget) OVERRIDE {
+    return ash::Shell::GetInstance()->CreateDefaultNonClientFrameView(widget);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellViewsDelegate);
+};
+
 class ShellDelegateImpl : public ash::ShellDelegate {
  public:
   ShellDelegateImpl() {
   }
 
   virtual void CreateNewWindow() OVERRIDE {
     ash::shell::ToplevelWindow::CreateParams create_params;
     create_params.can_resize = true;
     create_params.can_maximize = true;
     ash::shell::ToplevelWindow::CreateToplevelWindow(create_params);
@@ skipping 61 matching lines @@
   ui::RegisterPathProvider();
   icu_util::Initialize();
   ResourceBundle::InitSharedInstance("en-US");
 
   // Create the message-loop here before creating the root window.
   MessageLoop message_loop(MessageLoop::TYPE_UI);
   ui::CompositorTestSupport::Initialize();
 
   // A ViewsDelegate is required.
   if (!views::ViewsDelegate::views_delegate)
-    views::ViewsDelegate::views_delegate = new views::TestViewsDelegate;
+    views::ViewsDelegate::views_delegate = new ShellViewsDelegate;
 
   ash::Shell::CreateInstance(new ShellDelegateImpl);
 
   ash::shell::InitWindowTypeLauncher();
 
   aura::RootWindow::GetInstance()->Run();
 
   ash::Shell::DeleteInstance();
 
   aura::RootWindow::DeleteInstance();
 
   ui::CompositorTestSupport::Terminate();
 
   return 0;
 }