It is time.

ui/views/controls/scrollbar/scroll_bar.cc

-// Copyright (c) 2011 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.
-
-#include "ui/views/controls/scrollbar/scroll_bar.h"
-
-#include "ui/accessibility/ax_view_state.h"
-
-namespace views {
-
-ScrollBar::~ScrollBar() {
-}
-
-void ScrollBar::GetAccessibleState(ui::AXViewState* state) {
-  state->role = ui::AX_ROLE_SCROLL_BAR;
-}
-
-bool ScrollBar::IsHorizontal() const {
-  return is_horiz_;
-}
-
-void ScrollBar::Update(int viewport_size, int content_size, int current_pos) {
-  max_pos_ = std::max(0, content_size - viewport_size);
-}
-
-int ScrollBar::GetMaxPosition() const {
-  return max_pos_;
-}
-
-int ScrollBar::GetMinPosition() const {
-  return 0;
-}
-
-int ScrollBar::GetContentOverlapSize() const {
-  return 0;
-}
-
-void ScrollBar::OnMouseEnteredScrollView(const ui::MouseEvent& event) {
-}
-
-void ScrollBar::OnMouseExitedScrollView(const ui::MouseEvent& event) {
-}
-
-ScrollBar::ScrollBar(bool is_horiz)
-    : is_horiz_(is_horiz),
-      controller_(NULL),
-      max_pos_(0) {
-}
-
-}  // namespace views