Update omnibox dropdown selection/hover background drawing for MD.

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"
@@ skipping 55 matching lines @@
   void OnMouseEntered(const ui::MouseEvent& event) override;
   void OnMouseExited(const ui::MouseEvent& event) override;
   void OnGestureEvent(ui::GestureEvent* event) override;
 
   bool IsSelectedIndex(size_t index) const;
   bool IsHoveredIndex(size_t index) const;
   gfx::Image GetIconIfExtensionMatch(size_t index) const;
   bool IsStarredMatch(const AutocompleteMatch& match) const;
 
   int max_match_contents_width() const { return max_match_contents_width_; }
-  int start_margin() const { return start_margin_; }
-  int end_margin() const { return end_margin_; }
 
  protected:
   OmniboxPopupContentsView(const gfx::FontList& font_list,
                            OmniboxView* omnibox_view,
                            OmniboxEditModel* edit_model,
                            LocationBarView* location_bar_view);
   ~OmniboxPopupContentsView() override;
 
   LocationBarView* location_bar_view() { return location_bar_view_; }
 
@@ skipping 78 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_