Oilpan: add transition types to shadow DOM supporting objects.

Source/core/dom/shadow/ShadowRoot.cpp

Index: Source/core/dom/shadow/ShadowRoot.cpp
diff --git a/Source/core/dom/shadow/ShadowRoot.cpp b/Source/core/dom/shadow/ShadowRoot.cpp
index 1f5b2d83fda38f696c833624c2f05aea28b763b2..9a63cfa9eaa7fd987a4ff37ce9889c17db265959 100644
--- a/Source/core/dom/shadow/ShadowRoot.cpp
+++ b/Source/core/dom/shadow/ShadowRoot.cpp
@@ -263,7 +263,7 @@ HTMLShadowElement* ShadowRoot::shadowInsertionPointOfYoungerShadowRoot() const
     return m_shadowRootRareData ? m_shadowRootRareData->shadowInsertionPointOfYoungerShadowRoot() : 0;
 }
 
-void ShadowRoot::setShadowInsertionPointOfYoungerShadowRoot(PassRefPtr<HTMLShadowElement> shadowInsertionPoint)
+void ShadowRoot::setShadowInsertionPointOfYoungerShadowRoot(PassRefPtrWillBeRawPtr<HTMLShadowElement> shadowInsertionPoint)
 {
     if (!m_shadowRootRareData && !shadowInsertionPoint)
         return;
@@ -306,19 +306,28 @@ void ShadowRoot::invalidateDescendantInsertionPoints()
     m_shadowRootRareData->clearDescendantInsertionPoints();
 }
 
-const Vector<RefPtr<InsertionPoint> >& ShadowRoot::descendantInsertionPoints()
+const WillBeHeapVector<RefPtrWillBeMember<InsertionPoint> >& ShadowRoot::descendantInsertionPoints()
 {
+#if ENABLE(OILPAN)
+    DEFINE_STATIC_LOCAL(Persistent<const WillBeHeapVector<RefPtrWillBeMember<InsertionPoint> > >, emptyList, (new WillBeHeapVector<RefPtrWillBeMember<InsertionPoint> >()));
+#else
     DEFINE_STATIC_LOCAL(const Vector<RefPtr<InsertionPoint> >, emptyList, ());

[haraken, 2014/05/12 12:21:38]

I'd prefer:

DEFINE_STATIC_LOCAL(WillBePersistentHeapVector<RefPtrWillBeMember<IntersionPoint>>,
emptyList, ());

and avoid the #if branches.

[sof, 2014/05/12 12:37:49]

Oh, nice - that will work here. Switched.

+#endif
 
     if (m_shadowRootRareData && m_descendantInsertionPointsIsValid)
         return m_shadowRootRareData->descendantInsertionPoints();
 
     m_descendantInsertionPointsIsValid = true;
 
-    if (!containsInsertionPoints())
+    if (!containsInsertionPoints()) {
+#if ENABLE(OILPAN)
+        return *emptyList;
+#else
         return emptyList;
+#endif
+    }
 
-    Vector<RefPtr<InsertionPoint> > insertionPoints;
+    WillBeHeapVector<RefPtrWillBeMember<InsertionPoint> > insertionPoints;
     for (Element* element = ElementTraversal::firstWithin(*this); element; element = ElementTraversal::next(*element, this)) {
         if (element->isInsertionPoint())
             insertionPoints.append(toInsertionPoint(element));