status_icons: Change StatusTray to use ScopedVector.

chrome/browser/status_icons/status_tray.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 CHROME_BROWSER_STATUS_ICONS_STATUS_TRAY_H_
 #define CHROME_BROWSER_STATUS_ICONS_STATUS_TRAY_H_
 #pragma once
 
-#include <vector>
-
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
+#include "base/memory/scoped_vector.h"
 
 class StatusIcon;
 
 // Provides a cross-platform interface to the system's status tray, and exposes
 // APIs to add/remove icons to the tray and attach context menus.
 class StatusTray {
  public:
   // Static factory method that is implemented separately for each platform to
   // produce the appropriate platform-specific instance. Returns NULL if this
   // platform does not support status icons.
   static StatusTray* Create();
 
   virtual ~StatusTray();
 
   // Creates a new StatusIcon. The StatusTray retains ownership of the
   // StatusIcon. Returns NULL if the StatusIcon could not be created.
   StatusIcon* CreateStatusIcon();
 
   // Removes |icon| from this status tray.
   void RemoveStatusIcon(StatusIcon* icon);
 
  protected:
-  typedef std::vector<StatusIcon*> StatusIconList;
+  typedef ScopedVector<StatusIcon> StatusIcons;
 
   StatusTray();
 
   // Factory method for creating a status icon for this platform.
   virtual StatusIcon* CreatePlatformStatusIcon() = 0;
 
   // Returns the list of active status icons so subclasses can operate on them.
-  const StatusIconList& status_icons() { return status_icons_; }
+  const StatusIcons& status_icons() const { return status_icons_; }
 
  private:
   FRIEND_TEST_ALL_PREFIXES(StatusTrayTest, CreateRemove);
 
-  // List containing all active StatusIcons.
-  StatusIconList status_icons_;
+  // List containing all active StatusIcons. The icons are owned by this
+  // StatusTray.
+  StatusIcons status_icons_;
 
   DISALLOW_COPY_AND_ASSIGN(StatusTray);
 };
 
 #endif  // CHROME_BROWSER_STATUS_ICONS_STATUS_TRAY_H_