O(1) SkPictureUtils::ApproxBytesUsed()

src/core/SkRecorder.h

Index: src/core/SkRecorder.h
diff --git a/src/core/SkRecorder.h b/src/core/SkRecorder.h
index 6842aece58b465e2a067f5694027603ee2155f09..d0a992fc082f85fcbeaef70553d808f9a1ff711e 100644
--- a/src/core/SkRecorder.h
+++ b/src/core/SkRecorder.h
@@ -41,6 +41,8 @@ public:
 
     void reset(SkRecord*, const SkRect& bounds);
 
+    size_t approxBytesUsedBySubPictures() const { return fApproxBytesUsedBySubPictures; }
+
     SkDrawableList* getDrawableList() const { return fDrawableList.get(); }
     SkDrawableList* detachDrawableList() { return fDrawableList.detach(); }
 
@@ -131,8 +133,8 @@ private:
         return devBounds;
     }
 
+    size_t fApproxBytesUsedBySubPictures;
     SkRecord* fRecord;
-
     SkAutoTDelete<SkDrawableList> fDrawableList;
 };