mash: Migrate some system user files to common.

ash/system/user/rounded_image_view.cc

-// Copyright 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 "ash/system/user/rounded_image_view.h"
-#include "skia/ext/image_operations.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkPath.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/image/image_skia_operations.h"
-#include "ui/gfx/skia_util.h"
-
-namespace ash {
-namespace tray {
-
-RoundedImageView::RoundedImageView(int corner_radius, bool active_user)
-    : active_user_(active_user) {
-  for (int i = 0; i < 4; ++i)
-    corner_radius_[i] = corner_radius;
-}
-
-RoundedImageView::~RoundedImageView() {}
-
-void RoundedImageView::SetImage(const gfx::ImageSkia& img,
-                                const gfx::Size& size) {
-  image_ = img;
-  image_size_ = size;
-
-  // Try to get the best image quality for the avatar.
-  resized_ = gfx::ImageSkiaOperations::CreateResizedImage(
-      image_, skia::ImageOperations::RESIZE_BEST, size);
-  if (GetWidget() && visible()) {
-    PreferredSizeChanged();
-    SchedulePaint();
-  }
-}
-
-void RoundedImageView::SetCornerRadii(int top_left,
-                                      int top_right,
-                                      int bottom_right,
-                                      int bottom_left) {
-  corner_radius_[0] = top_left;
-  corner_radius_[1] = top_right;
-  corner_radius_[2] = bottom_right;
-  corner_radius_[3] = bottom_left;
-}
-
-gfx::Size RoundedImageView::GetPreferredSize() const {
-  return gfx::Size(image_size_.width() + GetInsets().width(),
-                   image_size_.height() + GetInsets().height());
-}
-
-void RoundedImageView::OnPaint(gfx::Canvas* canvas) {
-  View::OnPaint(canvas);
-  gfx::Rect image_bounds(size());
-  image_bounds.ClampToCenteredSize(GetPreferredSize());
-  image_bounds.Inset(GetInsets());
-  const SkScalar kRadius[8] = {
-    SkIntToScalar(corner_radius_[0]),
-    SkIntToScalar(corner_radius_[0]),
-    SkIntToScalar(corner_radius_[1]),
-    SkIntToScalar(corner_radius_[1]),
-    SkIntToScalar(corner_radius_[2]),
-    SkIntToScalar(corner_radius_[2]),
-    SkIntToScalar(corner_radius_[3]),
-    SkIntToScalar(corner_radius_[3])
-  };
-  SkPath path;
-  path.addRoundRect(gfx::RectToSkRect(image_bounds), kRadius);
-  SkPaint paint;
-  paint.setAntiAlias(true);
-  paint.setXfermodeMode(active_user_ ? SkXfermode::kSrcOver_Mode
-                                     : SkXfermode::kLuminosity_Mode);
-  canvas->DrawImageInPath(
-      resized_, image_bounds.x(), image_bounds.y(), path, paint);
-}
-
-}  // namespace tray
-}  // namespace ash