Move cc::DisplayItemList and related classes into cc/paint/

cc/playback/compositing_display_item.h

-// Copyright 2015 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.
-
-#ifndef CC_PLAYBACK_COMPOSITING_DISPLAY_ITEM_H_
-#define CC_PLAYBACK_COMPOSITING_DISPLAY_ITEM_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/memory/ptr_util.h"
-#include "cc/base/cc_export.h"
-#include "cc/playback/display_item.h"
-#include "third_party/skia/include/core/SkColorFilter.h"
-#include "third_party/skia/include/core/SkRect.h"
-#include "third_party/skia/include/core/SkRefCnt.h"
-#include "ui/gfx/geometry/rect_f.h"
-
-class SkCanvas;
-
-namespace cc {
-
-class CC_EXPORT CompositingDisplayItem : public DisplayItem {
- public:
-  CompositingDisplayItem(uint8_t alpha,
-                         SkBlendMode xfermode,
-                         SkRect* bounds,
-                         sk_sp<SkColorFilter> color_filter,
-                         bool lcd_text_requires_opaque_layer);
-  ~CompositingDisplayItem() override;
-
-  void Raster(SkCanvas* canvas,
-              SkPicture::AbortCallback* callback) const override;
-
-  size_t ExternalMemoryUsage() const {
-    // TODO(pdr): Include color_filter's memory here.
-    return 0;
-  }
-  int ApproximateOpCount() const { return 1; }
-
-  uint8_t alpha() const { return alpha_; }
-  SkBlendMode xfermode() const { return xfermode_; }
-  bool has_bounds() const { return has_bounds_; }
-  const SkRect& bounds() const { return bounds_; }
-
- private:
-  void SetNew(uint8_t alpha,
-              SkBlendMode xfermode,
-              SkRect* bounds,
-              sk_sp<SkColorFilter> color_filter,
-              bool lcd_text_requires_opaque_layer);
-
-  uint8_t alpha_;
-  SkBlendMode xfermode_;
-  bool has_bounds_;
-  SkRect bounds_;
-  sk_sp<SkColorFilter> color_filter_;
-  bool lcd_text_requires_opaque_layer_;
-};
-
-class CC_EXPORT EndCompositingDisplayItem : public DisplayItem {
- public:
-  EndCompositingDisplayItem();
-  ~EndCompositingDisplayItem() override;
-
-  static std::unique_ptr<EndCompositingDisplayItem> Create() {
-    return base::MakeUnique<EndCompositingDisplayItem>();
-  }
-
-  void Raster(SkCanvas* canvas,
-              SkPicture::AbortCallback* callback) const override;
-
-  int ApproximateOpCount() const { return 0; }
-};
-
-}  // namespace cc
-
-#endif  // CC_PLAYBACK_COMPOSITING_DISPLAY_ITEM_H_