Remove some platform specific stuff from views.

ui/app_list/app_list_folder_item.cc

Index: ui/app_list/app_list_folder_item.cc
diff --git a/ui/app_list/app_list_folder_item.cc b/ui/app_list/app_list_folder_item.cc
deleted file mode 100644
index 120d48e219e10ef82365500fefdb69295dcb6314..0000000000000000000000000000000000000000
--- a/ui/app_list/app_list_folder_item.cc
+++ /dev/null
@@ -1,246 +0,0 @@
-// Copyright 2013 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/app_list/app_list_folder_item.h"
-
-#include "base/guid.h"
-#include "ui/app_list/app_list_constants.h"
-#include "ui/app_list/app_list_item_list.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/image/canvas_image_source.h"
-#include "ui/gfx/image/image_skia_operations.h"
-
-namespace app_list {
-
-namespace {
-
-const int kItemIconDimension = 16;
-
-// Generates the folder icon with the top 4 child item icons laid in 2x2 tile.
-class FolderImageSource : public gfx::CanvasImageSource {
- public:
-  typedef std::vector<gfx::ImageSkia> Icons;
-
-  FolderImageSource(const Icons& icons, const gfx::Size& size)
-      : gfx::CanvasImageSource(size, false),
-        icons_(icons),
-        size_(size) {
-    DCHECK(icons.size() <= kNumFolderTopItems);
-  }
-
-  ~FolderImageSource() override {}
-
- private:
-  void DrawIcon(gfx::Canvas* canvas,
-                const gfx::ImageSkia& icon,
-                const gfx::Size icon_size,
-                int x, int y) {
-    if (icon.isNull())
-      return;
-
-    gfx::ImageSkia resized(
-        gfx::ImageSkiaOperations::CreateResizedImage(
-            icon, skia::ImageOperations::RESIZE_BEST, icon_size));
-    canvas->DrawImageInt(resized, 0, 0, resized.width(), resized.height(),
-        x, y, resized.width(), resized.height(), true);
-  }
-
-  // gfx::CanvasImageSource overrides:
-  void Draw(gfx::Canvas* canvas) override {
-    // Draw folder circle.
-    gfx::Point center = gfx::Point(size().width() / 2 , size().height() / 2);
-    SkPaint paint;
-    paint.setStyle(SkPaint::kFill_Style);
-    paint.setAntiAlias(true);
-    paint.setColor(kFolderBubbleColor);
-    canvas->DrawCircle(center, size().width() / 2, paint);
-
-    if (icons_.size() == 0)
-      return;
-
-    // Draw top items' icons.
-    const gfx::Size item_icon_size =
-        gfx::Size(kItemIconDimension, kItemIconDimension);
-    Rects top_icon_bounds =
-        AppListFolderItem::GetTopIconsBounds(gfx::Rect(size()));
-
-    for (size_t i= 0; i < kNumFolderTopItems && i < icons_.size(); ++i) {
-      DrawIcon(canvas, icons_[i], item_icon_size,
-               top_icon_bounds[i].x(), top_icon_bounds[i].y());
-    }
-  }
-
-  Icons icons_;
-  gfx::Size size_;
-
-  DISALLOW_COPY_AND_ASSIGN(FolderImageSource);
-};
-
-}  // namespace
-
-AppListFolderItem::AppListFolderItem(const std::string& id,
-                                     FolderType folder_type)
-    : AppListItem(id),
-      folder_type_(folder_type),
-      item_list_(new AppListItemList) {
-  item_list_->AddObserver(this);
-}
-
-AppListFolderItem::~AppListFolderItem() {
-  for (size_t i = 0; i < top_items_.size(); ++i)
-    top_items_[i]->RemoveObserver(this);
-  item_list_->RemoveObserver(this);
-}
-
-void AppListFolderItem::UpdateIcon() {
-  FolderImageSource::Icons top_icons;
-  for (size_t i = 0; i < top_items_.size(); ++i)
-    top_icons.push_back(top_items_[i]->icon());
-
-  const gfx::Size icon_size = gfx::Size(kGridIconDimension, kGridIconDimension);
-  gfx::ImageSkia icon = gfx::ImageSkia(
-      new FolderImageSource(top_icons, icon_size),
-      icon_size);
-  SetIcon(icon, false);
-}
-
-const gfx::ImageSkia& AppListFolderItem::GetTopIcon(size_t item_index) {
-  DCHECK(item_index <= top_items_.size());
-  return top_items_[item_index]->icon();
-}
-
-gfx::Rect AppListFolderItem::GetTargetIconRectInFolderForItem(
-    AppListItem* item,
-    const gfx::Rect& folder_icon_bounds) {
-  for (size_t i = 0; i < top_items_.size(); ++i) {
-    if (item->id() == top_items_[i]->id()) {
-      Rects rects = AppListFolderItem::GetTopIconsBounds(folder_icon_bounds);
-      return rects[i];
-    }
-  }
-
-  gfx::Rect target_rect(folder_icon_bounds);
-  target_rect.ClampToCenteredSize(
-      gfx::Size(kItemIconDimension, kItemIconDimension));
-  return target_rect;
-}
-
-void AppListFolderItem::Activate(int event_flags) {
-  // Folder handling is implemented by the View, so do nothing.
-}
-
-// static
-const char AppListFolderItem::kItemType[] = "FolderItem";
-
-// static
-Rects AppListFolderItem::GetTopIconsBounds(
-    const gfx::Rect& folder_icon_bounds) {
-  const int delta_to_center = 1;
-  gfx::Point icon_center = folder_icon_bounds.CenterPoint();
-  Rects top_icon_bounds;
-
-  // Get the top left icon bounds.
-  int left_x = icon_center.x() - kItemIconDimension - delta_to_center;
-  int top_y = icon_center.y() - kItemIconDimension - delta_to_center;
-  gfx::Rect top_left(left_x, top_y, kItemIconDimension, kItemIconDimension);
-  top_icon_bounds.push_back(top_left);
-
-  // Get the top right icon bounds.
-  int right_x = icon_center.x() + delta_to_center;
-  gfx::Rect top_right(right_x, top_y, kItemIconDimension, kItemIconDimension);
-  top_icon_bounds.push_back(top_right);
-
-  // Get the bottom left icon bounds.
-  int bottom_y = icon_center.y() + delta_to_center;
-  gfx::Rect bottom_left(
-      left_x, bottom_y, kItemIconDimension, kItemIconDimension);
-  top_icon_bounds.push_back(bottom_left);
-
-  // Get the bottom right icon bounds.
-  gfx::Rect bottom_right(
-      right_x, bottom_y, kItemIconDimension, kItemIconDimension);
-  top_icon_bounds.push_back(bottom_right);
-
-  return top_icon_bounds;
-}
-
-const char* AppListFolderItem::GetItemType() const {
-  return AppListFolderItem::kItemType;
-}
-
-ui::MenuModel* AppListFolderItem::GetContextMenuModel() {
-  // TODO(stevenjb/jennyz): Implement.
-  return NULL;
-}
-
-AppListItem* AppListFolderItem::FindChildItem(const std::string& id) {
-  return item_list_->FindItem(id);
-}
-
-size_t AppListFolderItem::ChildItemCount() const {
-  return item_list_->item_count();
-}
-
-void AppListFolderItem::OnExtensionPreferenceChanged() {
-  for (size_t i = 0; i < item_list_->item_count(); ++i)
-    item_list_->item_at(i)->OnExtensionPreferenceChanged();
-}
-
-bool AppListFolderItem::CompareForTest(const AppListItem* other) const {
-  if (!AppListItem::CompareForTest(other))
-    return false;
-  const AppListFolderItem* other_folder =
-      static_cast<const AppListFolderItem*>(other);
-  if (other_folder->item_list()->item_count() != item_list_->item_count())
-    return false;
-  for (size_t i = 0; i < item_list_->item_count(); ++i) {
-    if (!item_list()->item_at(i)->CompareForTest(
-            other_folder->item_list()->item_at(i)))
-      return false;
-  }
-  return true;
-}
-
-std::string AppListFolderItem::GenerateId() {
-  return base::GenerateGUID();
-}
-
-void AppListFolderItem::ItemIconChanged() {
-  UpdateIcon();
-}
-
-void AppListFolderItem::OnListItemAdded(size_t index,
-                                        AppListItem* item) {
-  if (index <= kNumFolderTopItems)
-    UpdateTopItems();
-}
-
-void AppListFolderItem::OnListItemRemoved(size_t index,
-                                          AppListItem* item) {
-  if (index <= kNumFolderTopItems)
-    UpdateTopItems();
-}
-
-void AppListFolderItem::OnListItemMoved(size_t from_index,
-                                        size_t to_index,
-                                        AppListItem* item) {
-  if (from_index <= kNumFolderTopItems || to_index <= kNumFolderTopItems)
-    UpdateTopItems();
-}
-
-void AppListFolderItem::UpdateTopItems() {
-  for (size_t i = 0; i < top_items_.size(); ++i)
-    top_items_[i]->RemoveObserver(this);
-  top_items_.clear();
-
-  for (size_t i = 0;
-       i < kNumFolderTopItems && i < item_list_->item_count(); ++i) {
-    AppListItem* item = item_list_->item_at(i);
-    item->AddObserver(this);
-    top_items_.push_back(item);
-  }
-  UpdateIcon();
-}
-
-}  // namespace app_list