Update from https://crrev.com/318214

cc/resources/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_RESOURCES_COMPOSITING_DISPLAY_ITEM_H_
+#define CC_RESOURCES_COMPOSITING_DISPLAY_ITEM_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "cc/base/cc_export.h"
+#include "cc/resources/display_item.h"
+#include "skia/ext/refptr.h"
+#include "third_party/skia/include/core/SkColorFilter.h"
+#include "third_party/skia/include/core/SkRect.h"
+#include "third_party/skia/include/core/SkXfermode.h"
+#include "ui/gfx/geometry/rect_f.h"
+
+class SkCanvas;
+class SkDrawPictureCallback;
+
+namespace cc {
+
+class CC_EXPORT CompositingDisplayItem : public DisplayItem {
+ public:
+  ~CompositingDisplayItem() override;
+
+  static scoped_ptr<CompositingDisplayItem> Create(
+      float opacity,
+      SkXfermode::Mode xfermode,
+      SkRect* bounds,
+      skia::RefPtr<SkColorFilter> color_filter) {
+    return make_scoped_ptr(
+        new CompositingDisplayItem(opacity, xfermode, bounds, color_filter));
+  }
+
+  void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
+
+  bool IsSuitableForGpuRasterization() const override;
+  int ApproximateOpCount() const override;
+  size_t PictureMemoryUsage() const override;
+  void AsValueInto(base::trace_event::TracedValue* array) const override;
+
+ protected:
+  CompositingDisplayItem(float opacity,
+                         SkXfermode::Mode,
+                         SkRect* bounds,
+                         skia::RefPtr<SkColorFilter>);
+
+ private:
+  float opacity_;
+  SkXfermode::Mode xfermode_;
+  bool has_bounds_;
+  SkRect bounds_;
+  skia::RefPtr<SkColorFilter> color_filter_;
+};
+
+class CC_EXPORT EndCompositingDisplayItem : public DisplayItem {
+ public:
+  ~EndCompositingDisplayItem() override;
+
+  static scoped_ptr<EndCompositingDisplayItem> Create() {
+    return make_scoped_ptr(new EndCompositingDisplayItem());
+  }
+
+  void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
+
+  bool IsSuitableForGpuRasterization() const override;
+  int ApproximateOpCount() const override;
+  size_t PictureMemoryUsage() const override;
+  void AsValueInto(base::trace_event::TracedValue* array) const override;
+
+ protected:
+  EndCompositingDisplayItem();
+};
+
+}  // namespace cc
+
+#endif  // CC_RESOURCES_COMPOSITING_DISPLAY_ITEM_H_