Sibling invalidation sets

Source/core/css/invalidation/InvalidationListData.h

Index: Source/core/css/invalidation/InvalidationListData.h
diff --git a/Source/core/css/invalidation/InvalidationListData.h b/Source/core/css/invalidation/InvalidationListData.h
new file mode 100644
index 0000000000000000000000000000000000000000..f99c800e74638dcf1907a9ba12dbdb8bbfa5a649
--- /dev/null
+++ b/Source/core/css/invalidation/InvalidationListData.h
@@ -0,0 +1,28 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef InvalidationListData_h
+#define InvalidationListData_h
+
+#include "core/css/invalidation/InvalidationData.h"
+
+namespace blink {
+
+class CORE_EXPORT InvalidationListData final {

[Timothy Loh, 2015/09/10 06:09:40]

could do with a better name

[Eric Willigers, 2015/09/14 07:20:24]

Acknowledged. Renamed to InvalidationLists.

+    WTF_MAKE_NONCOPYABLE(InvalidationListData);
+public:
+    static PassOwnPtr<InvalidationListData> create() { return adoptPtr(new InvalidationListData); }
+
+    InvalidationSetVector& descendants() { return m_invalidationList[InvalidateDescendants]; }

[esprehn, 2015/09/10 08:54:53]

This doesn't need an array and an enum like this.

[Eric Willigers, 2015/09/14 07:20:23]

Fixed.

+    InvalidationSetVector& siblings() { return m_invalidationList[InvalidateSiblings]; }
+
+private:
+    InvalidationListData() {}
+
+    InvalidationSetVector m_invalidationList[InvalidateTypeCount];

[esprehn, 2015/09/10 08:54:53]

Please don't use an array of Vectors, this only contains two of them, just add
two InvalidationSetVector's here.

[Eric Willigers, 2015/09/14 07:20:24]

Done.

+};
+
+} // namespace blink
+
+#endif // InvalidationListData_h