746         , fSize(size) , fOffset(0), fCurrentOffset(0) { }  in SkBlockMemoryStream()
755             size_t bytesLeftInCurrent = fCurrent->written() - fCurrentOffset;  in read()
758                 memcpy(buffer, fCurrent->start() + fCurrentOffset, bytesFromCurrent);  in read()
762                 fCurrentOffset += bytesFromCurrent;  in read()
768             fCurrentOffset = 0;  in read()
786         size_t currentOffset = fCurrentOffset;  in peek()
802         fCurrentOffset = 0;  in rewind()
822         if (moveBackAmount <= fCurrentOffset) {  in seek()
823             fCurrentOffset -= moveBackAmount;  in seek()
839         that->fCurrentOffset = this->fCurrentOffset;  in onFork()
859     size_t fCurrentOffset;  member in SkBlockMemoryStream