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diff --git a/chrome/browser/ui/views/infobars/extension_infobar.h b/chrome/browser/ui/views/infobars/extension_infobar.h
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+++ b/chrome/browser/ui/views/infobars/extension_infobar.h
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+// Copyright (c) 2010 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_INFOBARS_EXTENSION_INFOBAR_H_
+#define CHROME_BROWSER_UI_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_
+#pragma once
+
+#include "chrome/browser/views/infobars/infobars.h"
+
+#include "chrome/browser/extensions/extension_infobar_delegate.h"
+#include "chrome/browser/extensions/image_loading_tracker.h"
+#include "chrome/browser/views/extensions/extension_view.h"
+#include "views/controls/menu/view_menu_delegate.h"
+
+class ExtensionContextMenuModel;
+class ExtensionInfoBarDelegate;
+
+namespace views {
+  class MenuButton;
+  class Menu2;
+}
+
+// This class implements InfoBars for Extensions.
+class ExtensionInfoBar : public InfoBar,
+                         public ExtensionView::Container,
+                         public ImageLoadingTracker::Observer,
+                         public ExtensionInfoBarDelegate::DelegateObserver,
+                         public views::ViewMenuDelegate {
+ public:
+  explicit ExtensionInfoBar(ExtensionInfoBarDelegate* delegate);
+  virtual ~ExtensionInfoBar();
+
+  // Overridden from ExtensionView::Container:
+  virtual void OnExtensionMouseMove(ExtensionView* view) {}
+  virtual void OnExtensionMouseLeave(ExtensionView* view) {}
+  virtual void OnExtensionPreferredSizeChanged(ExtensionView* view);
+
+  // Overridden from views::View:
+  virtual void Layout();
+
+  // Overridden from ImageLoadingTracker::Observer:
+  virtual void OnImageLoaded(
+      SkBitmap* image, ExtensionResource resource, int index);
+
+  // Overridden from ExtensionInfoBarDelegate::DelegateObserver:
+  virtual void OnDelegateDeleted();
+
+  // Overridden from views::ViewMenuDelegate:
+  virtual void RunMenu(View* source, const gfx::Point& pt);
+
+ private:
+  // Setup the menu button showing the small extension icon and its dropdown
+  // menu.
+  void SetupIconAndMenu();
+
+  NotificationRegistrar notification_registrar_;
+
+  ExtensionInfoBarDelegate* delegate_;
+
+  // The dropdown menu for accessing the contextual extension actions.
+  scoped_refptr<ExtensionContextMenuModel> options_menu_contents_;
+  scoped_ptr<views::Menu2> options_menu_menu_;
+  views::MenuButton* menu_;
+
+  // Keeps track of images being loaded on the File thread.
+  ImageLoadingTracker tracker_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBar);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_