Index: third_party/WebKit/Source/core/dom/WeakIdentifierMap.h |
diff --git a/third_party/WebKit/Source/core/dom/WeakIdentifierMap.h b/third_party/WebKit/Source/core/dom/WeakIdentifierMap.h |
index 4eae8473f2639782fc829c04bcca8f29b2c1d7a4..005194e9ec49147137f065fe50af8eb06f84af5e 100644 |
--- a/third_party/WebKit/Source/core/dom/WeakIdentifierMap.h |
+++ b/third_party/WebKit/Source/core/dom/WeakIdentifierMap.h |
@@ -102,6 +102,7 @@ class WeakIdentifierMap final |
WeakIdentifierMap<T, ##__VA_ARGS__>& \ |
WeakIdentifierMap<T, ##__VA_ARGS__>::instance() { \ |
using RefType = WeakIdentifierMap<T, ##__VA_ARGS__>; \ |
+ ALLOW_UNSAFE_SINGLETON() \ |
DEFINE_STATIC_LOCAL(RefType, mapInstance, \ |
(new WeakIdentifierMap<T, ##__VA_ARGS__>())); \ |
return mapInstance; \ |