Implement the status tray/icon API for ChromeOS.

chrome/browser/chromeos/frame/browser_view.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_FRAME_BROWSER_VIEW_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 28 matching lines @@
 class BrowserView : public ::BrowserView,
                     public views::ContextMenuController,
                     public views::MenuListener,
                     public BrowserList::Observer,
                     public StatusAreaButton::Delegate,
                     public MessageLoopForUI::Observer {
  public:
   explicit BrowserView(Browser* browser);
   virtual ~BrowserView();
 
+  // Adds a new tray icon/button to the Chrome OS Tray.
+  // Takes ownership of the button object.
+  void AddTrayButton(StatusAreaButton* button, bool bordered);
+
+  // Remove an existing tray button from the Chrome OS Tray.
+  // Pointer will become invalid after this call.
+  void RemoveTrayButton(StatusAreaButton* button);
+
+  // Check if a button is currently contained in the view.
+  bool ContainsButton(StatusAreaButton* button);
+
+  static BrowserView* GetBrowserViewForBrowser(Browser* browser);
+
   // BrowserView implementation.
   virtual void Init() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void ShowInactive() OVERRIDE;
   virtual void FocusChromeOSStatus() OVERRIDE;
   virtual views::LayoutManager* CreateLayoutManager() const OVERRIDE;
   virtual void ChildPreferredSizeChanged(View* child) OVERRIDE;
   virtual bool GetSavedWindowPlacement(
       gfx::Rect* bounds,
       ui::WindowShowState* show_state) const OVERRIDE;
@@ skipping 85 matching lines @@
   // Should the layout mode button be shown?  We only show it if there are
   // multiple browsers open.
   bool should_show_layout_mode_button_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FRAME_BROWSER_VIEW_H_