Add push/pop cull to SkRecord.

src/record/SkRecorder.h

 #ifndef SkRecorder_DEFINED
 #define SkRecorder_DEFINED
 
 #include "SkCanvas.h"
 #include "SkRecord.h"
 #include "SkRecords.h"
 
 // SkRecorder provides an SkCanvas interface for recording into an SkRecord.
 
 class SkRecorder : public SkCanvas {
@@ skipping 39 matching lines @@
 
     void didConcat(const SkMatrix&);
     void didSetMatrix(const SkMatrix&);
 
     void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&);
     void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle);
     void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle);
     void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle);
     void onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op);
 
+    void onPushCull(const SkRect& cullRect);
+    void onPopCull();
+
 private:
     template <typename T>
     T* copy(const T*);
 
     template <typename T>
     T* copy(const T[], unsigned count);
 
     SkRecord* fRecord;
 };
 
 #endif//SkRecorder_DEFINED