cc: Increment the ref count when assigning the SkImageFilter

cc/render_pass.h

 // 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_RENDER_PASS_H_
 #define CC_RENDER_PASS_H_
 
 #include "base/basictypes.h"
 #include "cc/cc_export.h"
 #include "cc/draw_quad.h"
 #include "cc/hash_pair.h"
 #include "cc/scoped_ptr_hash_map.h"
 #include "cc/scoped_ptr_vector.h"
 #include "cc/shared_quad_state.h"
 #include "third_party/skia/include/core/SkColor.h"
+#include "third_party/skia/include/core/SkImageFilter.h"
+#include "third_party/skia/include/core/SkRefCnt.h"
 #include "ui/gfx/rect_f.h"
 #include <public/WebFilterOperations.h>
 #include <public/WebTransformationMatrix.h>
 #include <vector>
 
-class SkImageFilter;
-
 namespace cc {
 
 // A list of DrawQuad objects, sorted internally in front-to-back order.
 class QuadList : public ScopedPtrVector<DrawQuad> {
  public:
   typedef reverse_iterator backToFrontIterator;
   typedef const_reverse_iterator constBackToFrontIterator;
 
   inline backToFrontIterator backToFrontBegin() { return rbegin(); }
   inline backToFrontIterator backToFrontEnd() { return rend(); }
@@ skipping 35 matching lines @@
               gfx::RectF damage_rect,
               const WebKit::WebTransformationMatrix& transform_to_root_target);
 
   void SetAll(Id id,
               gfx::Rect output_rect,
               gfx::RectF damage_rect,
               const WebKit::WebTransformationMatrix& transform_to_root_target,
               bool has_transparent_background,
               bool has_occlusion_from_outside_target_surface,
               const WebKit::WebFilterOperations& filters,
-              SkImageFilter* filter,
+              const SkRefPtr<SkImageFilter>& filter,
               const WebKit::WebFilterOperations& background_filters);
 
   // Uniquely identifies the render pass in the compositor's current frame.
   Id id;
 
   // These are in the space of the render pass' physical pixels.
   gfx::Rect output_rect;
   gfx::RectF damage_rect;
 
   // Transforms from the origin of the |output_rect| to the origin of the root
   // render pass' |output_rect|.
   WebKit::WebTransformationMatrix transform_to_root_target;
 
   // If false, the pixels in the render pass' texture are all opaque.
   bool has_transparent_background;
 
   // If true, then there may be pixels in the render pass' texture that are not
   // complete, since they are occluded.
   bool has_occlusion_from_outside_target_surface;
 
   // Deprecated post-processing filters, applied to the pixels in the render
   // pass' texture.
   WebKit::WebFilterOperations filters;
   // Post-processing filter applied to the pixels in the render pass' texture.
-  SkImageFilter* filter;
+  SkRefPtr<SkImageFilter> filter;
 
   // Post-processing filters, applied to the pixels showing through the
   // background of the render pass, from behind it.
   WebKit::WebFilterOperations background_filters;
 
   QuadList quad_list;
   SharedQuadStateList shared_quad_state_list;
 
  protected:
   RenderPass();
@@ skipping 22 matching lines @@
 #error define a hash function for your compiler
 #endif // COMPILER
 }
 
 namespace cc {
 typedef std::vector<RenderPass*> RenderPassList;
 typedef ScopedPtrHashMap<RenderPass::Id, RenderPass> RenderPassIdHashMap;
 } // namespace cc
 
 #endif  // CC_RENDER_PASS_H_