663         , fSize(size) , fOffset(0), fCurrentOffset(0) { }  in SkBlockMemoryStream()
673             size_t bytesLeftInCurrent = fCurrent->written() - fCurrentOffset;  in read()
676                 memcpy(buffer, fCurrent->start() + fCurrentOffset, bytesFromCurrent);  in read()
680                 fCurrentOffset += bytesFromCurrent;  in read()
686             fCurrentOffset = 0;  in read()
704         size_t currentOffset = fCurrentOffset;  in peek()
720         fCurrentOffset = 0;  in rewind()
740         if (moveBackAmount <= fCurrentOffset) {  in seek()
741             fCurrentOffset -= moveBackAmount;  in seek()
757         that->fCurrentOffset = this->fCurrentOffset;  in fork()
777     size_t fCurrentOffset;  member in SkBlockMemoryStream