Migrate WTF::HashMap::add() to ::insert()

third_party/WebKit/Source/core/layout/shapes/ShapeOutsideInfo.h

Index: third_party/WebKit/Source/core/layout/shapes/ShapeOutsideInfo.h
diff --git a/third_party/WebKit/Source/core/layout/shapes/ShapeOutsideInfo.h b/third_party/WebKit/Source/core/layout/shapes/ShapeOutsideInfo.h
index 83cdc16ee48cef7971ce854c534cf7ac0874f063..644ffe63192832292a1f82e12bd22b49813f36c1 100644
--- a/third_party/WebKit/Source/core/layout/shapes/ShapeOutsideInfo.h
+++ b/third_party/WebKit/Source/core/layout/shapes/ShapeOutsideInfo.h
@@ -135,7 +135,7 @@ class ShapeOutsideInfo final {
     if (ShapeOutsideInfo* info = infoMap.get(&key))
       return *info;
     InfoMap::AddResult result =
-        infoMap.add(&key, ShapeOutsideInfo::createInfo(key));
+        infoMap.insert(&key, ShapeOutsideInfo::createInfo(key));
     return *result.storedValue->value;
   }
   static void removeInfo(const LayoutBox& key) { infoMap().remove(&key); }