Make platform/heap to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/heap/HeapLinkedStack.h

Index: third_party/WebKit/Source/platform/heap/HeapLinkedStack.h
diff --git a/third_party/WebKit/Source/platform/heap/HeapLinkedStack.h b/third_party/WebKit/Source/platform/heap/HeapLinkedStack.h
index 4d89073f41c6a236e4b3ea735db18f09cefe23ff..dbb7db1b27febead4b5e72c20d1952a213aca9cb 100644
--- a/third_party/WebKit/Source/platform/heap/HeapLinkedStack.h
+++ b/third_party/WebKit/Source/platform/heap/HeapLinkedStack.h
@@ -33,6 +33,7 @@
 
 #include "platform/heap/Heap.h"
 #include "platform/heap/Visitor.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
@@ -112,6 +113,7 @@ inline size_t HeapLinkedStack<T>::size()
 
 template<typename T>
 class TraceEagerlyTrait<HeapLinkedStack<T>> {
+    STATIC_ONLY(TraceEagerlyTrait);
 public:
     static const bool value = TraceEagerlyTrait<T>::value;
 };