Introduce BubbleDialogDelegateView, which extends DialogDelegateView

chrome/browser/ui/views/extensions/extension_installed_bubble_view.h

 // Copyright 2013 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_INSTALLED_BUBBLE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_VIEW_H_
 
 #include "base/macros.h"
 #include "chrome/browser/ui/extensions/extension_installed_bubble.h"
 #include "chrome/browser/ui/sync/bubble_sync_promo_delegate.h"
@@ skipping 32 matching lines @@
                                BubbleReference bubble_reference);
   ~ExtensionInstalledBubbleView() override;
 
   // Recalculate the anchor position for this bubble.
   void UpdateAnchorView();
 
   void InitLayout();
 
  private:
   // views::BubbleDelegateView:
-  scoped_ptr<views::View> CreateFootnoteView() override;
+  View* CreateFootnoteView() override;
   void WindowClosing() override;
   gfx::Rect GetAnchorRect() const override;
   void OnWidgetClosing(views::Widget* widget) override;
   void OnWidgetActivationChanged(views::Widget* widget, bool active) override;
   bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
 
   // BubbleSyncPromoDelegate:
   void OnSignInLinkClicked() override;
 
   // views::LinkListener:
@@ skipping 12 matching lines @@
   // The button to close the bubble.
   views::LabelButton* close_;
 
   // The shortcut to open the manage shortcuts page.
   views::Link* manage_shortcut_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInstalledBubbleView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_VIEW_H_