O(1) SkPictureUtils::ApproxBytesUsed()

src/core/SkRecorder.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRecorder_DEFINED
 #define SkRecorder_DEFINED
 
@@ skipping 23 matching lines @@
 // SkRecorder provides an SkCanvas interface for recording into an SkRecord.
 
 class SkRecorder : public SkCanvas {
 public:
     // Does not take ownership of the SkRecord.
     SkRecorder(SkRecord*, int width, int height);   // legacy version
     SkRecorder(SkRecord*, const SkRect& bounds);
 
     void reset(SkRecord*, const SkRect& bounds);
 
+    size_t approxBytesUsedBySubPictures() const { return fApproxBytesUsedBySubPictures; }
+
     SkDrawableList* getDrawableList() const { return fDrawableList.get(); }
     SkDrawableList* detachDrawableList() { return fDrawableList.detach(); }
 
     // Make SkRecorder forget entirely about its SkRecord*; all calls to SkRecorder will fail.
     void forgetRecord();
 
     void willSave() override;
     SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SkCanvas::SaveFlags) override;
     void willRestore() override {}
     void didRestore() override;
@@ skipping 70 matching lines @@
 
     template <typename T>
     T* copy(const T[], size_t count);
 
     SkIRect devBounds() const {
         SkIRect devBounds;
         this->getClipDeviceBounds(&devBounds);
         return devBounds;
     }
 
+    size_t fApproxBytesUsedBySubPictures;
     SkRecord* fRecord;
-
     SkAutoTDelete<SkDrawableList> fDrawableList;
 };
 
 #endif//SkRecorder_DEFINED