IntersectionObserver: second cut.

third_party/WebKit/Source/core/dom/ElementRareData.cpp

Index: third_party/WebKit/Source/core/dom/ElementRareData.cpp
diff --git a/third_party/WebKit/Source/core/dom/ElementRareData.cpp b/third_party/WebKit/Source/core/dom/ElementRareData.cpp
index 7000ea932f250ebf1a9b57cd92453960668cc336..e436e341b5e8661fd9e55c47ce527d586ec78374 100644
--- a/third_party/WebKit/Source/core/dom/ElementRareData.cpp
+++ b/third_party/WebKit/Source/core/dom/ElementRareData.cpp
@@ -30,8 +30,8 @@
 
 #include "config.h"
 #include "core/dom/ElementRareData.h"
-
 #include "core/dom/CompositorProxiedPropertySet.h"
+#include "core/dom/Document.h"

[esprehn, 2015/12/17 01:40:28]

still needed?

[szager1, 2015/12/17 20:27:25]

Nope, removed it.

 #include "core/style/ComputedStyle.h"
 
 namespace blink {
@@ -41,7 +41,7 @@ struct SameSizeAsElementRareData : NodeRareData {
     LayoutSize sizeForResizing;
     IntSize scrollOffset;
     void* pointers[13];
-    PersistentWillBeMember<void*> member[1];
+    PersistentWillBeMember<void*> persistentMember[2];
 };
 
 CSSStyleDeclaration& ElementRareData::ensureInlineCSSStyleDeclaration(Element* ownerElement)
@@ -74,6 +74,7 @@ DEFINE_TRACE_AFTER_DISPATCH(ElementRareData)
     visitor->trace(m_generatedAfter);
     visitor->trace(m_generatedFirstLetter);
     visitor->trace(m_backdrop);
+    visitor->trace(m_intersectionObserverData);
     NodeRareData::traceAfterDispatch(visitor);
 }