chrome: Cleanup class/struct forward declarations

chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.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_OMNIBOX_OMNIBOX_POPUP_CONTENTS_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_POPUP_CONTENTS_VIEW_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/omnibox/browser/omnibox_popup_model.h"
 #include "components/omnibox/browser/omnibox_popup_view.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/animation/slide_animation.h"
 #include "ui/gfx/font_list.h"
 #include "ui/gfx/image/image.h"
 #include "ui/views/view.h"
 #include "ui/views/view_targeter_delegate.h"
 
 struct AutocompleteMatch;
 class LocationBarView;
 class OmniboxEditModel;
 class OmniboxResultView;
 class OmniboxView;
-class Profile;
 
 // A view representing the contents of the autocomplete popup.
 class OmniboxPopupContentsView : public views::View,
                                  public OmniboxPopupView,
                                  public views::ViewTargeterDelegate,
                                  public gfx::AnimationDelegate {
  public:
   // Factory method for creating the AutocompletePopupView.
   static OmniboxPopupView* Create(const gfx::FontList& font_list,
                                   OmniboxView* omnibox_view,
@@ skipping 123 matching lines @@
 
   // When the dropdown is not wide enough while displaying postfix suggestions,
   // we use the width of widest match contents to shift the suggestions so that
   // the widest suggestion just reaches the end edge.
   int max_match_contents_width_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxPopupContentsView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_POPUP_CONTENTS_VIEW_H_