cc: Handle directly composited images in impl-side painting

cc/picture_image_layer.h

+// Copyright 2010 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_PICTURE_IMAGE_LAYER_H_
+#define CC_PICTURE_IMAGE_LAYER_H_
+
+#include "cc/cc_export.h"
+#include "cc/content_layer_client.h"
+#include "cc/picture_layer.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/size.h"
+
+namespace cc {
+
+class CC_EXPORT PictureImageLayer : public PictureLayer, ContentLayerClient {
+ public:
+  static scoped_refptr<PictureImageLayer> create();
+
+  void setBitmap(const SkBitmap& image);
+
+  // Layer implementation.
+  virtual void update(
+      ResourceUpdateQueue& queue,
+      const OcclusionTracker* tracker,
+      RenderingStats& stats) OVERRIDE;
+
+  // ContentLayerClient implementation.
+  virtual void paintContents(
+      SkCanvas* canvas,
+      const gfx::Rect& clip,
+      gfx::RectF& opaque) OVERRIDE;
+
+ private:
+  PictureImageLayer();
+  virtual ~PictureImageLayer();
+
+  SkBitmap bitmap_;
+  gfx::Size bounds_;
+};
+
+}  // namespace cc
+
+#endif  // CC_PICTURE_IMAGE_LAYER_H_