1 files changed, 74 insertions, 0 deletions
diff --git a/chromium/cc/layers/content_layer.h b/chromium/cc/layers/content_layer.h
new file mode 100644
index 00000000000..f49215b6b40
--- /dev/null
+++ b/chromium/cc/layers/content_layer.h
@@ -0,0 +1,74 @@
+// 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_LAYERS_CONTENT_LAYER_H_
+#define CC_LAYERS_CONTENT_LAYER_H_
+
+#include "base/basictypes.h"
+#include "cc/base/cc_export.h"
+#include "cc/layers/tiled_layer.h"
+#include "cc/resources/layer_painter.h"
+
+class SkCanvas;
+
+namespace cc {
+
+class ContentLayerClient;
+class ContentLayerUpdater;
+
+class CC_EXPORT ContentLayerPainter : public LayerPainter {
+ public:
+  static scoped_ptr<ContentLayerPainter> Create(ContentLayerClient* client);
+
+  virtual void Paint(SkCanvas* canvas,
+                     gfx::Rect content_rect,
+                     gfx::RectF* opaque) OVERRIDE;
+
+ private:
+  explicit ContentLayerPainter(ContentLayerClient* client);
+
+  ContentLayerClient* client_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContentLayerPainter);
+};
+
+// A layer that renders its contents into an SkCanvas.
+class CC_EXPORT ContentLayer : public TiledLayer {
+ public:
+  static scoped_refptr<ContentLayer> Create(ContentLayerClient* client);
+
+  void ClearClient() { client_ = NULL; }
+
+  virtual bool DrawsContent() const OVERRIDE;
+  virtual void SetLayerTreeHost(LayerTreeHost* layer_tree_host) OVERRIDE;
+  virtual void SetTexturePriorities(const PriorityCalculator& priority_calc)
+      OVERRIDE;
+  virtual bool Update(ResourceUpdateQueue* queue,
+                      const OcclusionTracker* occlusion) OVERRIDE;
+  virtual bool NeedMoreUpdates() OVERRIDE;
+
+  virtual void SetContentsOpaque(bool contents_opaque) OVERRIDE;
+
+  virtual bool SupportsLCDText() const OVERRIDE;
+
+ protected:
+  explicit ContentLayer(ContentLayerClient* client);
+  virtual ~ContentLayer();
+
+ private:
+  // TiledLayer implementation.
+  virtual LayerUpdater* Updater() const OVERRIDE;
+  virtual void CreateUpdaterIfNeeded() OVERRIDE;
+
+  void UpdateCanUseLCDText();
+
+  ContentLayerClient* client_;
+  scoped_refptr<ContentLayerUpdater> updater_;
+  bool can_use_lcd_text_last_frame_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContentLayer);
+};
+
+}  // namespace cc
+#endif  // CC_LAYERS_CONTENT_LAYER_H_