Revert of Changes look for scrollbars on windows

ui/native_theme/native_theme_aurawin.cc

-// Copyright (c) 2014 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/native_theme/native_theme_aurawin.h"
-
-#include "grit/ui_resources.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "ui/base/nine_image_painter_factory.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/nine_image_painter.h"
-#include "ui/gfx/skia_util.h"
-#include "ui/gfx/win/dpi.h"
-#include "ui/native_theme/common_theme.h"
-#include "ui/native_theme/native_theme_win.h"
-
-using gfx::NineImagePainter;
-
-#define EMPTY_IMAGE_GRID { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
-
-namespace ui {
-
-namespace {
-
-const int kScrollbarThumbImages[NativeTheme::kMaxState][9] = {
-  EMPTY_IMAGE_GRID,
-  IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_HOVER),
-  IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_NORMAL),
-  IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_PRESSED)
-};
-
-const int kScrollbarArrowButtonImages[NativeTheme::kMaxState][9] = {
-  EMPTY_IMAGE_GRID,
-  IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_HOVER),
-  IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_NORMAL),
-  IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_PRESSED)
-};
-
-const int kScrollbarTrackImages[9] = IMAGE_GRID(IDR_SCROLLBAR_BASE);
-
-}  // namespace
-
-// static
-NativeTheme* NativeTheme::instance() {
-  return NativeThemeAuraWin::instance();
-}
-
-// static
-NativeThemeAura* NativeThemeAura::instance() {
-  return NativeThemeAuraWin::instance();
-}
-
-// static
-NativeThemeAuraWin* NativeThemeAuraWin::instance() {
-  CR_DEFINE_STATIC_LOCAL(NativeThemeAuraWin, s_native_theme, ());
-  return &s_native_theme;
-}
-
-NativeThemeAuraWin::NativeThemeAuraWin() {
-  // Image declarations assume the following order.
-  COMPILE_ASSERT(kDisabled == 0, states_unexepctedly_changed);
-  COMPILE_ASSERT(kHovered == 1, states_unexepctedly_changed);
-  COMPILE_ASSERT(kNormal == 2, states_unexepctedly_changed);
-  COMPILE_ASSERT(kPressed == 3, states_unexepctedly_changed);
-  COMPILE_ASSERT(kMaxState == 4, states_unexepctedly_changed);
-}
-
-NativeThemeAuraWin::~NativeThemeAuraWin() {
-}
-
-gfx::Size NativeThemeAuraWin::GetPartSize(Part part,
-                                          State state,
-                                          const ExtraParams& extra) const {
-  gfx::Size part_size = CommonThemeGetPartSize(part, state, extra);
-  if (!part_size.IsEmpty())
-    return part_size;
-
-  // We want aura on windows to use the same size for scrollbars as we would in
-  // the native theme.
-  switch (part) {
-    case kScrollbarDownArrow:
-    case kScrollbarLeftArrow:
-    case kScrollbarRightArrow:
-    case kScrollbarUpArrow:
-    case kScrollbarHorizontalThumb:
-    case kScrollbarVerticalThumb:
-    case kScrollbarHorizontalTrack:
-    case kScrollbarVerticalTrack:
-      return NativeThemeWin::instance()->GetPartSize(part, state, extra);
-    default:
-      break;
-  }
-
-  return NativeThemeAura::GetPartSize(part, state, extra);
-}
-
-void NativeThemeAuraWin::PaintArrowButton(
-      SkCanvas* gc,
-      const gfx::Rect& rect,
-      Part direction,
-      State state) const {
-  if (direction == kInnerSpinButton) {
-    NativeThemeAura::PaintArrowButton(gc, rect, direction, state);
-    return;
-  }
-  PaintPainter(GetOrCreatePainter(
-                   kScrollbarArrowButtonImages, state,
-                   scrollbar_arrow_button_painters_),
-               gc, rect);
-
-  // The arrow is slightly offset to better balance with the thumb.
-  gfx::Rect arrow_rect(rect);
-  if (direction == kScrollbarDownArrow || direction == kScrollbarUpArrow)
-    arrow_rect.Offset(1, 0);
-  else
-    arrow_rect.Offset(0, 1);
-
-  // Aura-win uses slightly different arrow colors.
-  SkColor arrow_color = GetArrowColor(state);
-  switch (state) {
-    case kHovered:
-    case kNormal:
-      arrow_color = SkColorSetRGB(0x50, 0x50, 0x50);
-      break;
-    case kPressed:
-      arrow_color = SK_ColorWHITE;
-    default:
-      break;
-  }
-  PaintArrow(gc, arrow_rect, direction, arrow_color);
-}
-
-void NativeThemeAuraWin::PaintScrollbarTrack(
-    SkCanvas* sk_canvas,
-    Part part,
-    State state,
-    const ScrollbarTrackExtraParams& extra_params,
-    const gfx::Rect& rect) const {
-  if (!scrollbar_track_painter_)
-    scrollbar_track_painter_ = CreateNineImagePainter(kScrollbarTrackImages);
-  PaintPainter(scrollbar_track_painter_.get(), sk_canvas, rect);
-}
-
-void NativeThemeAuraWin::PaintScrollbarThumb(SkCanvas* sk_canvas,
-                                             Part part,
-                                             State state,
-                                             const gfx::Rect& rect) const {
-  gfx::Rect thumb_rect(rect);
-  if (part == NativeTheme::kScrollbarVerticalThumb)
-    thumb_rect.Inset(3, 0, 1, 0);
-  else
-    thumb_rect.Inset(0, 3, 0, 1);
-  PaintPainter(GetOrCreatePainter(
-                   kScrollbarThumbImages, state, scrollbar_thumb_painters_),
-               sk_canvas, thumb_rect);
-}
-
-NineImagePainter* NativeThemeAuraWin::GetOrCreatePainter(
-    const int images[kMaxState][9],
-    State state,
-    scoped_ptr<NineImagePainter> painters[kMaxState]) const {
-  if (painters[state])
-    return painters[state].get();
-  if (images[state][0] == 0) {
-    // Must always provide normal state images.
-    DCHECK_NE(kNormal, state);
-    return GetOrCreatePainter(images, kNormal, painters);
-  }
-  painters[state] = CreateNineImagePainter(images[state]);
-  return painters[state].get();
-}
-
-void NativeThemeAuraWin::PaintPainter(NineImagePainter* painter,
-                                      SkCanvas* sk_canvas,
-                                      const gfx::Rect& rect) const {
-  DCHECK(painter);
-  scoped_ptr<gfx::Canvas> canvas(CreateCanvas(sk_canvas));
-  painter->Paint(canvas.get(), rect);
-}
-
-}  // namespace ui