chrome: Cleanup class/struct forward declarations

chrome/browser/ui/views/chooser_content_view.h

 // Copyright 2016 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_CHOOSER_CONTENT_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_CHOOSER_CONTENT_VIEW_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/chooser_controller/chooser_controller.h"
 #include "ui/base/models/table_model.h"
 #include "ui/gfx/range/range.h"
 #include "ui/views/controls/styled_label_listener.h"
 #include "ui/views/view.h"
 
 namespace views {
-class Link;
 class StyledLabel;
 class TableView;
 class TableViewObserver;
 class Throbber;
 }
 
 // A bubble or dialog view for choosing among several options in a table.
 // Used for WebUSB/WebBluetooth device selection for Chrome and extensions.
 //
 // TODO(juncai): change ChooserContentView class name to be more specific.
@@ skipping 61 matching lines @@
   base::string16 help_text_;
   base::string16 help_and_scanning_text_;
   base::string16 help_and_re_scan_text_;
   gfx::Range help_text_range_;
   gfx::Range re_scan_text_range_;
 
   DISALLOW_COPY_AND_ASSIGN(ChooserContentView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_CHOOSER_CONTENT_VIEW_H_