[Panel refactor] Deprecate old panels.

chrome/browser/ui/panels/native_panel_cocoa.h

Index: chrome/browser/ui/panels/native_panel_cocoa.h
diff --git a/chrome/browser/ui/panels/native_panel_cocoa.h b/chrome/browser/ui/panels/native_panel_cocoa.h
deleted file mode 100644
index 4036ab14a4d223476caeb2a4ef700106b65f756b..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/panels/native_panel_cocoa.h
+++ /dev/null
@@ -1,25 +0,0 @@
-// 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_NATIVE_PANEL_COCOA_H_
-#define CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_COCOA_H_
-
-#include "chrome/browser/ui/panels/native_panel.h"
-
-// Cocoa NativePanel interface used by the PanelWindowControllerCocoa class
-// as its C++ window shim. I wish I had a "friend @class" construct to make
-// this interface non-public.
-class NativePanelCocoa : public NativePanel {
- public:
-  virtual ~NativePanelCocoa() {}
-
-  virtual Panel* panel() const = 0;
-
-  // Callback from cocoa panel window controller that native window was actually
-  // closed. The window may not close right away because of onbeforeunload
-  // handlers.
-  virtual void DidCloseNativeWindow() = 0;
-};
-
-#endif  // CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_H_