1 files changed, 57 insertions, 0 deletions
diff --git a/chromium/cc/resources/bitmap_skpicture_content_layer_updater.h b/chromium/cc/resources/bitmap_skpicture_content_layer_updater.h
new file mode 100644
index 00000000000..e03f56d853d
--- /dev/null
+++ b/chromium/cc/resources/bitmap_skpicture_content_layer_updater.h
@@ -0,0 +1,57 @@
+// Copyright 2011 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_BITMAP_SKPICTURE_CONTENT_LAYER_UPDATER_H_
+#define CC_RESOURCES_BITMAP_SKPICTURE_CONTENT_LAYER_UPDATER_H_
+
+#include "cc/resources/skpicture_content_layer_updater.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+namespace cc {
+
+// This class records the content_rect into an SkPicture, then software
+// rasterizes the SkPicture into bitmaps for each tile. This implements
+// LayerTreeSettingSettings::per_tile_painting_enabled.
+class BitmapSkPictureContentLayerUpdater : public SkPictureContentLayerUpdater {
+ public:
+  class Resource : public ContentLayerUpdater::Resource {
+   public:
+    Resource(BitmapSkPictureContentLayerUpdater* updater,
+             scoped_ptr<PrioritizedResource> texture);
+
+    virtual void Update(ResourceUpdateQueue* queue,
+                        gfx::Rect source_rect,
+                        gfx::Vector2d dest_offset,
+                        bool partial_update) OVERRIDE;
+
+   private:
+    SkBitmap bitmap_;
+    BitmapSkPictureContentLayerUpdater* updater_;
+
+    DISALLOW_COPY_AND_ASSIGN(Resource);
+  };
+
+  static scoped_refptr<BitmapSkPictureContentLayerUpdater> Create(
+      scoped_ptr<LayerPainter> painter,
+      RenderingStatsInstrumentation* stats_instrumentation,
+      int layer_id);
+
+  virtual scoped_ptr<LayerUpdater::Resource> CreateResource(
+      PrioritizedResourceManager* manager) OVERRIDE;
+  void PaintContentsRect(SkCanvas* canvas,
+                         gfx::Rect source_rect);
+
+ private:
+  BitmapSkPictureContentLayerUpdater(
+      scoped_ptr<LayerPainter> painter,
+      RenderingStatsInstrumentation* stats_instrumentation,
+      int layer_id);
+  virtual ~BitmapSkPictureContentLayerUpdater();
+
+  DISALLOW_COPY_AND_ASSIGN(BitmapSkPictureContentLayerUpdater);
+};
+
+}  // namespace cc
+
+#endif  // CC_RESOURCES_BITMAP_SKPICTURE_CONTENT_LAYER_UPDATER_H_