[WIP] Implement BackGroundFilter as seperate layer in cc

cc/quads/filter_draw_quad.h

+// Copyright 2014 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_QUADS_FILTER_DRAW_QUAD_H_
+#define CC_QUADS_FILTER_DRAW_QUAD_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "cc/base/cc_export.h"
+#include "cc/quads/draw_quad.h"
+#include "cc/output/filter_operations.h"
+
+namespace cc {
+
+class CC_EXPORT FilterDrawQuad : public DrawQuad {
+ public:
+  FilterDrawQuad();
+
+  void SetNew(const SharedQuadState* shared_quad_state,
+              const gfx::Rect& visible_rect,
+              const gfx::Rect& src_rect,
+              const gfx::Rect& dst_draw_rect,
+              const FilterOperations& background_filters);
+
+  void SetAll(const SharedQuadState* shared_quad_state,
+              const gfx::Rect& rect,
+              const gfx::Rect& opaque_rect,
+              const gfx::Rect& visible_rect,
+              bool needs_blending,
+              const gfx::Rect& src_rect,
+              const gfx::Rect& dst_draw_rect,
+              const FilterOperations& background_filters);
+
+  virtual void IterateResources(
+      const ResourceIteratorCallback& callback) OVERRIDE;
+
+  static const FilterDrawQuad* MaterialCast(const DrawQuad*);
+
+  gfx::Rect src_filter_rect_;
+  gfx::Rect draw_filter_rect_;
+  FilterOperations filter_operations_;
+
+ private:
+  virtual void ExtendValue(base::debug::TracedValue* value) const OVERRIDE;
+};
+
+}  // namespace cc
+
+#endif  // CC_QUADS_FILTER_DRAW_QUAD_H_