[Panel refactor] Deprecate old panels.

chrome/browser/ui/panels/docked_panel_strip.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_UI_PANELS_DOCKED_PANEL_STRIP_H_
 #define CHROME_BROWSER_UI_PANELS_DOCKED_PANEL_STRIP_H_
 
 #include <list>
 #include <set>
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/ui/panels/display_settings_provider.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_strip.h"
 #include "chrome/browser/ui/panels/panel_mouse_watcher_observer.h"
 #include "ui/gfx/rect.h"
 
-class Browser;
 class PanelManager;
 
 // This class manages a group of panels displayed in a horizontal strip,
 // positioning the panels and controlling how they are displayed.
 // Panels in the strip appear minimized, showing title-only or expanded.
 // All panels in the strip are contained within the bounds of the strip.
 class DockedPanelStrip : public PanelStrip,
                          public PanelMouseWatcherObserver,
                          public DisplaySettingsProvider::DesktopBarObserver {
  public:
@@ skipping 167 matching lines @@
 
   // Used to save the placement information for a panel.
   PanelPlacement saved_panel_placement_;
 
   static const int kPanelsHorizontalSpacing = 4;
 
   DISALLOW_COPY_AND_ASSIGN(DockedPanelStrip);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_DOCKED_PANEL_STRIP_H_