extensions: Add ExtensionView interface.

chrome/browser/ui/views/extensions/extension_dialog.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_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/views/widget/widget_delegate.h"
 
 class BaseWindow;
 class ExtensionDialogObserver;
 class GURL;
 class Profile;
 
 namespace content {
 class WebContents;
 }
 
 namespace extensions {
 class ExtensionHost;
 }
 
+class ExtensionViewViews;
+
 // Modal dialog containing contents provided by an extension.
 // Dialog is automatically centered in the owning window and has fixed size.
 // For example, used by the Chrome OS file browser.
 class ExtensionDialog : public views::WidgetDelegate,
                         public content::NotificationObserver,
                         public base::RefCounted<ExtensionDialog> {
  public:
   // Create and show a dialog with |url| centered over the provided window.
   // |base_window| is the window to which the pop-up will be attached.
   // |profile| is the profile that the extension is registered with.
@@ skipping 92 matching lines @@
   string16 window_title_;
 
   // The contained host for the view.
   scoped_ptr<extensions::ExtensionHost> extension_host_;
 
   content::NotificationRegistrar registrar_;
 
   // The observer of this popup.
   ExtensionDialogObserver* observer_;
 
+  ExtensionViewViews* view_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_