CSS: Additional asserts for style invalidation

third_party/WebKit/Source/core/css/invalidation/InvalidationSet.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 62 matching lines @@
 //
 // .u ~ * {}
 //   For class u we will have a SiblingInvalidationSet with wholeSubtreeInvalid and invalidatesSelf (for all siblings, the sibling itself is invalidated).
 //
 // .t .v, .t ~ .z {}
 //   For class t we will have a SiblingInvalidationSet containing class z, with the SiblingInvalidationSet also holding descendants containing class v.
 //
 // We avoid virtual functions to minimize space consumption.
 class CORE_EXPORT InvalidationSet {
     WTF_MAKE_NONCOPYABLE(InvalidationSet);
-    USING_FAST_MALLOC_WITH_TYPE_NAME(blink::InvalidationSet);
+    USING_FAST_MALLOC(blink::InvalidationSet);

[esprehn, 2016/09/01 05:30:22]

Why change this in this patch? The other macro seems about the same, I'm also
not sure why we annotate InvalidationSet and CSSSelector with
USING_FAST_MALLOC_WITH_TYPE_NAME but nothing else.

[Eric Willigers, 2016/09/01 14:56:31]

Removed from this patch. I believe the reason is that these have many instances
so having the instrumentation is helpful.

 public:
     InvalidationType type() const { return static_cast<InvalidationType>(m_type); }
     bool isDescendantInvalidationSet() const { return type() == InvalidateDescendants; }
     bool isSiblingInvalidationSet() const { return type() == InvalidateSiblings; }
 
     static void cacheTracingFlag();
 
     bool invalidatesElement(Element&) const;
 
     void addClass(const AtomicString& className);
@@ skipping 147 matching lines @@
     InvalidationSetVector descendants;
     InvalidationSetVector siblings;
 };
 
 DEFINE_TYPE_CASTS(DescendantInvalidationSet, InvalidationSet, value, value->isDescendantInvalidationSet(), value.isDescendantInvalidationSet());
 DEFINE_TYPE_CASTS(SiblingInvalidationSet, InvalidationSet, value, value->isSiblingInvalidationSet(), value.isSiblingInvalidationSet());
 
 } // namespace blink
 
 #endif // InvalidationSet_h