Update dialog close buttons to use vector icons and ripples.

chrome/browser/ui/views/bar_control_button.h

-// Copyright 2015 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_BAR_CONTROL_BUTTON_H_
-#define CHROME_BROWSER_UI_VIEWS_BAR_CONTROL_BUTTON_H_
-
-#include <memory>
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "ui/views/controls/button/image_button.h"
-
-namespace gfx {
-enum class VectorIconId;
-}
-
-// A class for buttons that control bars (find bar, download shelf, etc.). The
-// button has an image and no text.
-class BarControlButton : public views::ImageButton {
- public:
-  explicit BarControlButton(views::ButtonListener* listener);
-  ~BarControlButton() override;
-
-  // Sets the icon to display and provides a callback which should return the
-  // text color from which to derive this icon's color.
-  void SetIcon(gfx::VectorIconId id,
-               const base::Callback<SkColor(void)>& get_text_color_callback);
-
-  // views::ImageButton:
-  void OnThemeChanged() override;
-  void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
-
- private:
-  gfx::VectorIconId id_;
-  base::Callback<SkColor(void)> get_text_color_callback_;
-
-  DISALLOW_COPY_AND_ASSIGN(BarControlButton);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_BAR_CONTROL_BUTTON_H_