16     SkASSERT(0);  in operator new()
22     SkASSERT(0);  in operator delete()
28     SkASSERT(classID == SkToU32(fClassID));  in GrOp()
29     SkASSERT(classID);  in GrOp()
35     SkASSERT(this != that);  in combineIfPossible()
47     SkASSERT(next);  in chainConcat()
48     SkASSERT(this->classID() == next->classID());  in chainConcat()
49     SkASSERT(this->isChainTail());  in chainConcat()
50     SkASSERT(next->isChainHead());  in chainConcat()
65     SkASSERT(this->isChainHead());  in validateChain()
69         SkASSERT(op == this || (op->prevInChain() && op->prevInChain()->nextInChain() == op));  in validateChain()
70         SkASSERT(classID == op->classID());  in validateChain()
72             SkASSERT(op->nextInChain()->prevInChain() == op);  in validateChain()
73             SkASSERT(op != expectedTail);  in validateChain()
75             SkASSERT(!expectedTail || op == expectedTail);  in validateChain()