Implement progress bar spec (determinate and indeterminate).

ui/message_center/views/notification_progress_bar.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 UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_PROGRESS_BAR_H_
-#define UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_PROGRESS_BAR_H_
-
-#include "base/macros.h"
-#include "ui/gfx/animation/animation_delegate.h"
-#include "ui/gfx/animation/linear_animation.h"
-#include "ui/message_center/message_center_export.h"
-#include "ui/views/controls/progress_bar.h"
-
-namespace message_center {
-
-class MESSAGE_CENTER_EXPORT NotificationProgressBarBase
-    : public views::ProgressBar {
- public:
-  virtual bool is_indeterminate() = 0;
-
- private:
-  // Overriden from views::ProgressBar (originally from views::View)
-  gfx::Size GetPreferredSize() const override;
-};
-
-class MESSAGE_CENTER_EXPORT NotificationProgressBar
-    : public NotificationProgressBarBase {
- public:
-  NotificationProgressBar();
-  ~NotificationProgressBar() override;
-
-  bool is_indeterminate() override;
-
- private:
-  // Overriden from views::ProgressBar (originally from views::View)
-  void OnPaint(gfx::Canvas* canvas) override;
-
-  DISALLOW_COPY_AND_ASSIGN(NotificationProgressBar);
-};
-
-class MESSAGE_CENTER_EXPORT NotificationIndeterminateProgressBar
-    : public NotificationProgressBarBase, public gfx::AnimationDelegate {
- public:
-  NotificationIndeterminateProgressBar();
-  ~NotificationIndeterminateProgressBar() override;
-
-  bool is_indeterminate() override;
-
- private:
-  // Overriden from views::ProgressBar (originally from views::View)
-  void OnPaint(gfx::Canvas* canvas) override;
-
-  // Overriden from gfx::AnimationDelegate
-  void AnimationProgressed(const gfx::Animation* animation) override;
-  void AnimationEnded(const gfx::Animation* animation) override;
-
-  std::unique_ptr<gfx::LinearAnimation> indeterminate_bar_animation_;
-
-  DISALLOW_COPY_AND_ASSIGN(NotificationIndeterminateProgressBar);
-};
-
-}  // namespace message_center
-
-#endif  // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_PROGRESS_BAR_H_