browser/ui: Share BookmarkBarInstructions delegate between gtk and views.

chrome/browser/ui/views/bookmarks/bookmark_bar_instructions_view.h

 // Copyright (c) 2011 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_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/views/controls/link_listener.h"
 #include "ui/views/view.h"
 
+namespace chrome {
+class BookmarkBarInstructionsDelegate;
+}
 namespace views {
 class Label;
 class Link;
 }
 
 // BookmarkBarInstructionsView is a child of the bookmark bar that is visible
 // when the user has no bookmarks on the bookmark bar.
 // BookmarkBarInstructionsView shows a description of the bookmarks bar along
 // with a link to import bookmarks. Clicking the link results in notifying the
 // delegate.
 class BookmarkBarInstructionsView : public views::View,
                                     public views::LinkListener {
  public:
-  // The delegate is notified once the user clicks on the link to import
-  // bookmarks.
-  class Delegate {
-   public:
-    virtual void ShowImportDialog() = 0;
-
-   protected:
-    virtual ~Delegate() {}
-  };
-
-  explicit BookmarkBarInstructionsView(Delegate* delegate);
+  explicit BookmarkBarInstructionsView(
+      chrome::BookmarkBarInstructionsDelegate* delegate);
 
   // views::View overrides.
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual void OnThemeChanged() OVERRIDE;
   virtual void ViewHierarchyChanged(bool is_add,
                                     views::View* parent,
                                     views::View* child) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
 
   // views::LinkListener overrides.
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
 
  private:
   void UpdateColors();
 
-  Delegate* delegate_;
+  chrome::BookmarkBarInstructionsDelegate* delegate_;
 
   views::Label* instructions_;
   views::Link* import_link_;
 
   // The baseline of the child views. This is -1 if none of the views support a
   // baseline.
   int baseline_;
 
   // Have the colors of the child views been updated? This is initially false
   // and set to true once we have a valid ThemeProvider.
   bool updated_colors_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkBarInstructionsView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_