Show a different icon in the launcher for incognito windows

ash/launcher/tabbed_launcher_button.h

 // 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.
 
 #ifndef ASH_LAUNCHER_TABBED_LAUNCHER_BUTTON_H_
 #define ASH_LAUNCHER_TABBED_LAUNCHER_BUTTON_H_
 #pragma once
 
 #include "ash/launcher/launcher_button.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
 #include "ui/base/animation/animation_delegate.h"
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/glow_hover_controller.h"
 
 namespace ui {
 class MultiAnimation;
 }
 
 namespace ash {
+
+class LauncherItem;
+
 namespace internal {
 
 // Button used for items on the launcher corresponding to tabbed windows.
 class TabbedLauncherButton : public LauncherButton {
  public:
+  // Indicates if this button is incognito or not.
+  enum IncognitoState {
+    STATE_INCOGNITO,
+    STATE_NOT_INCOGNITO,
+  };
+
   static TabbedLauncherButton* Create(views::ButtonListener* listener,
-                                      LauncherButtonHost* host);
+                                      LauncherButtonHost* host,
+                                      IncognitoState is_incognito);
   virtual ~TabbedLauncherButton();
 
   // Notification that the images are about to change. Kicks off an animation.
   void PrepareForImageChange();
 
   // Sets the images to display for this entry.
   void SetTabImage(const SkBitmap& image);
 
  protected:
   TabbedLauncherButton(views::ButtonListener* listener,
-                       LauncherButtonHost* host);
+                       LauncherButtonHost* host,
+                       IncognitoState is_incognito);
   // View override.
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
 
   // LauncherButton override.
   virtual IconView* CreateIconView() OVERRIDE;
 
  private:
   // Used as the delegate for |animation_|.
   class IconView : public LauncherButton::IconView,
                    public ui::AnimationDelegate {
    public:
-    explicit IconView(TabbedLauncherButton* host);
+    IconView(TabbedLauncherButton* host, IncognitoState is_incognito);
     virtual ~IconView();
 
     // ui::AnimationDelegateImpl overrides:
     virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
     virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
 
     // Notification that the images are about to change. Kicks off an animation.
     void PrepareForImageChange();
 
     // Sets the image to display for this entry.
@@ skipping 10 matching lines @@
     // Used to animate image.
     scoped_ptr<ui::MultiAnimation> animation_;
 
     // Should |image_| be shown? This is set to false soon after
     // PrepareForImageChange() is invoked without a following call to
     // SetImages().
     bool show_image_;
 
     // Background images. Which one is chosen depends on the type of the window.
     static SkBitmap* browser_image_;
+    static SkBitmap* incognito_browser_image_;
     // TODO[dave] implement panel specific image.
     static SkBitmap* browser_panel_image_;
+    static SkBitmap* incognito_browser_panel_image_;
 
     DISALLOW_COPY_AND_ASSIGN(IconView);
   };
 
   IconView* tabbed_icon_view() {
     return static_cast<IconView*>(icon_view());
   }
 
+  // Indicates if the tabbed browser associated with this is an incognito
+  // window.
+  const IncognitoState is_incognito_;
+
   DISALLOW_COPY_AND_ASSIGN(TabbedLauncherButton);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_LAUNCHER_TABBED_LAUNCHER_BUTTON_H_