AppModalDialogQueue shouldn't depend on views.

chrome/browser/app_modal_dialog_delegate.h

 // Copyright (c) 2006-2008 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_VIEWS_APP_MODAL_DIALOG_DELEGATE_H__
-#define CHROME_VIEWS_APP_MODAL_DIALOG_DELEGATE_H__
+#ifndef CHROME_BROWSER_APP_MODAL_DIALOG_DELEGATE_H_
+#define CHROME_BROWSER_APP_MODAL_DIALOG_DELEGATE_H_
 
-#include "chrome/views/dialog_delegate.h"
+#if defined(OS_WIN)
+namespace views {
+class DialogDelegate;
+}
+#endif
 
-namespace views {
+class AppModalDialogDelegateTesting {
+ public:
+#if defined(OS_WIN)
+  virtual views::DialogDelegate* GetDialogDelegate() = 0;
+#endif
+};
 
 // Pure virtual interface for a window which is app modal.
-class AppModalDialogDelegate : public DialogDelegate {
+class AppModalDialogDelegate {
  public:
   // Called by the app modal window queue when it is time to show this window.
   virtual void ShowModalDialog() = 0;
 
   // Called by the app modal window queue to activate the window.
   virtual void ActivateModalDialog() = 0;
+
+  // Returns the interface used to control this dialog from testing. Should
+  // only be used in testing code.
+  virtual AppModalDialogDelegateTesting* GetTestingInterface() = 0;
 };
 
-} // namespace views
+#endif  // #ifndef CHROME_BROWSER_APP_MODAL_DIALOG_DELEGATE_H_
 
-#endif  // #ifndef CHROME_VIEWS_APP_MODAL_DIALOG_DELEGATE_H__
-