Oilpan: turn DOMWindow into a heap supplementable.

Source/modules/quota/DOMWindowQuota.cpp

Index: Source/modules/quota/DOMWindowQuota.cpp
diff --git a/Source/modules/quota/DOMWindowQuota.cpp b/Source/modules/quota/DOMWindowQuota.cpp
index e0018b5c9620ce0e7de3fb5364f0bf65b9f21634..3f73a122a9f6c98c230db1e1d7859ac3d3fed070 100644
--- a/Source/modules/quota/DOMWindowQuota.cpp
+++ b/Source/modules/quota/DOMWindowQuota.cpp
@@ -56,10 +56,10 @@ const char* DOMWindowQuota::supplementName()
 // static
 DOMWindowQuota& DOMWindowQuota::from(DOMWindow& window)
 {
-    DOMWindowQuota* supplement = static_cast<DOMWindowQuota*>(Supplement<DOMWindow>::from(window, supplementName()));
+    DOMWindowQuota* supplement = static_cast<DOMWindowQuota*>(WillBeHeapSupplement<DOMWindow>::from(window, supplementName()));
     if (!supplement) {
         supplement = new DOMWindowQuota(window);
-        provideTo(window, supplementName(), adoptPtr(supplement));
+        provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement));
     }
     return *supplement;
 }
@@ -77,4 +77,9 @@ DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo() const
     return m_storageInfo.get();
 }
 
+void DOMWindowQuota::trace(Visitor* visitor)
+{
+    visitor->trace(m_storageInfo);
+}
+
 } // namespace WebCore