Harmony - Use FocusableBorder for comboboxes on Mac

ui/views/style/mac/combobox_background_mac.cc

-// Copyright 2016 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/style/mac/combobox_background_mac.h"
-
-#include "third_party/skia/include/core/SkPath.h"
-#include "third_party/skia/include/core/SkRRect.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/scoped_canvas.h"
-#include "ui/native_theme/native_theme_mac.h"
-#include "ui/views/view.h"
-
-using ui::NativeThemeMac;
-
-namespace views {
-
-ComboboxBackgroundMac::ComboboxBackgroundMac(int container_width)
-    : container_width_(container_width) {}
-
-ComboboxBackgroundMac::~ComboboxBackgroundMac() {}
-
-void ComboboxBackgroundMac::Paint(gfx::Canvas* canvas, View* view) const {
-  gfx::RectF bounds(view->GetLocalBounds());
-  gfx::ScopedRTLFlipCanvas scoped_canvas(canvas, view->width());
-
-  // Inset the left side far enough to draw only the arrow button, and inset the
-  // other three sides by half a pixel so the edge of the background doesn't
-  // paint outside the border.
-  // Disabled comboboxes do not have a separate color for the arrow container;
-  // instead, the entire combobox is drawn with the disabled background shader.
-  if (view->enabled()) {
-    bounds.Inset(bounds.width() - container_width_, 0.5, 0.5, 0.5);
-  } else {
-    bounds.Inset(0.5, 0.5);
-  }
-
-  // TODO(tapted): Check whether the Widget is active, and use the NORMAL
-  // BackgroundType if it is inactive. Handling this properly also requires the
-  // control to observe the Widget for activation changes and invalidate.
-  NativeThemeMac::ButtonBackgroundType type =
-      NativeThemeMac::ButtonBackgroundType::HIGHLIGHTED;
-  if (!view->enabled())
-    type = NativeThemeMac::ButtonBackgroundType::DISABLED;
-
-  SkPaint paint;
-  paint.setShader(
-      NativeThemeMac::GetButtonBackgroundShader(type, bounds.height()));
-  paint.setStyle(SkPaint::kFill_Style);
-  paint.setAntiAlias(true);
-
-  SkPoint no_curve = SkPoint::Make(0, 0);
-  SkPoint curve = SkPoint::Make(
-      ui::NativeThemeMac::kButtonCornerRadius,
-      ui::NativeThemeMac::kButtonCornerRadius);
-  SkVector curves[4] = { no_curve, curve, curve, no_curve };
-
-  SkRRect fill_rect;
-  if (view->enabled())
-    fill_rect.setRectRadii(gfx::RectFToSkRect(bounds), curves);
-  else
-    fill_rect.setRectXY(gfx::RectFToSkRect(bounds), curve.fX, curve.fY);
-
-  SkPath path;
-  path.addRRect(fill_rect);
-
-  canvas->DrawPath(path, paint);
-}
-
-}  // namespace views