[MacViews] Implement colored window frames.

chrome/browser/ui/views/apps/chrome_native_app_window_views.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "extensions/components/native_app_window/native_app_window_views.h"
 
@@ skipping 23 matching lines @@
   // subclasses to customize the InitParams that would be passed.
   virtual void OnBeforePanelWidgetInit(bool use_default_bounds,
                                        views::Widget::InitParams* init_params,
                                        views::Widget* widget);
 
   virtual void InitializeDefaultWindow(
       const extensions::AppWindow::CreateParams& create_params);
   virtual void InitializePanelWindow(
       const extensions::AppWindow::CreateParams& create_params);
   virtual views::NonClientFrameView* CreateStandardDesktopAppFrame();
-  virtual apps::AppWindowFrameView* CreateNonStandardAppFrame();
+  virtual views::NonClientFrameView* CreateNonStandardAppFrame() = 0;
 
   // ui::BaseWindow implementation.
   gfx::Rect GetRestoredBounds() const override;
   ui::WindowShowState GetRestoredState() const override;
   bool IsAlwaysOnTop() const override;
 
   // WidgetDelegate implementation.
   gfx::ImageSkia GetWindowAppIcon() override;
   gfx::ImageSkia GetWindowIcon() override;
   views::NonClientFrameView* CreateNonClientFrameView(
@@ skipping 35 matching lines @@
   // The class that registers for keyboard shortcuts for extension commands.
   scoped_ptr<ExtensionKeybindingRegistryViews> extension_keybinding_registry_;
 
   // Used to capture all keyboard events including task switching sequence.
   scoped_ptr<DesktopKeyboardCapture> desktop_keyboard_capture_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeNativeAppWindowViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_