Convert ValidationMessageBubbleView to BubbleDialogDelegate

chrome/browser/ui/views/validation_message_bubble_delegate.h

-// Copyright (c) 2013 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_VALIDATION_MESSAGE_BUBBLE_DELEGATE_H_
-#define CHROME_BROWSER_UI_VIEWS_VALIDATION_MESSAGE_BUBBLE_DELEGATE_H_
-
-#include "base/macros.h"
-#include "ui/views/bubble/bubble_delegate.h"
-
-// A BubbleDelegateView implementation for form validation message bubble.
-// This class is exposed for testing.
-class ValidationMessageBubbleDelegate : public views::BubbleDelegateView {
- public:
-  // An interface to observe the widget closing.
-  class Observer {
-   public:
-    virtual void WindowClosing() = 0;
-
-   protected:
-    virtual ~Observer() {}
-  };
-
-  static const int kWindowMinWidth;
-  static const int kWindowMaxWidth;
-
-  ValidationMessageBubbleDelegate(const gfx::Rect& anchor_in_screen,
-                                  const base::string16& main_text,
-                                  const base::string16& sub_text,
-                                  Observer* observer);
-  ~ValidationMessageBubbleDelegate() override;
-
-  void Close();
-  void SetPositionRelativeToAnchor(const gfx::Rect& anchor_in_screen);
-
-  // BubbleDelegateView overrides:
-  gfx::Size GetPreferredSize() const override;
-  void DeleteDelegate() override;
-  void WindowClosing() override;
-
- private:
-  Observer* observer_;
-  int width_;
-  int height_;
-
-  DISALLOW_COPY_AND_ASSIGN(ValidationMessageBubbleDelegate);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_VALIDATION_MESSAGE_BUBBLE_DELEGATE_H_