Add support for converting cc::FilterOperations into an SkImageFilter

cc/trees/damage_tracker.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_TREES_DAMAGE_TRACKER_H_
 #define CC_TREES_DAMAGE_TRACKER_H_
 
 #include <vector>
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
   ~DamageTracker();
 
   void DidDrawDamagedArea() { current_damage_rect_ = gfx::RectF(); }
   void AddDamageNextUpdate(gfx::RectF dmg) { current_damage_rect_.Union(dmg); }
   void UpdateDamageTrackingState(
       const LayerImplList& layer_list,
       int target_surface_layer_id,
       bool target_surface_property_changed_only_from_descendant,
       gfx::Rect target_surface_content_rect,
       LayerImpl* target_surface_mask_layer,
-      const FilterOperations& filters,
-      SkImageFilter* filter);
+      const FilterOperations& filters);
 
   gfx::RectF current_damage_rect() { return current_damage_rect_; }
 
  private:
   DamageTracker();
 
   gfx::RectF TrackDamageFromActiveLayers(
       const LayerImplList& layer_list,
       int target_surface_layer_id);
   gfx::RectF TrackDamageFromSurfaceMask(LayerImpl* target_surface_mask_layer);
@@ skipping 16 matching lines @@
   scoped_ptr<RectMap> next_rect_history_;
 
   gfx::RectF current_damage_rect_;
 
   DISALLOW_COPY_AND_ASSIGN(DamageTracker);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_DAMAGE_TRACKER_H_