[Webkit-unassigned] [Bug 251697] EventListenerMap's m_entries vector wastes a lot of vector capacity

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=251697

--- Comment #5 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
diff --git a/Source/WebCore/dom/EventListenerMap.h b/Source/WebCore/dom/EventListenerMap.h
index 25a4340b6014f9e2bd2f1cd1b19760c86c30a6d7..55e619529189ad8bf80753514035d50be115c49c 100644
--- a/Source/WebCore/dom/EventListenerMap.h
+++ b/Source/WebCore/dom/EventListenerMap.h
@@ -74,7 +74,7 @@ public:
     Lock& lock() { return m_lock; }

 private:
-    Vector<std::pair<AtomString, EventListenerVector>> m_entries;
+    Vector<std::pair<AtomString, EventListenerVector>, 0, CrashOnOverflow, 4> m_entries;
     Lock m_lock;
 };

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