[inspector] Avoid unneeded heap allocations

src/inspector/injected-script-native.h

Index: src/inspector/injected-script-native.h
diff --git a/src/inspector/injected-script-native.h b/src/inspector/injected-script-native.h
index 3bdf24709dcd2a74e451689ff4e87ea955a56138..c0b93013fe7041eb7f45da7af1c4b9789a2f9d58 100644
--- a/src/inspector/injected-script-native.h
+++ b/src/inspector/injected-script-native.h
@@ -34,8 +34,7 @@ class InjectedScriptNative final {
 
   int m_lastBoundObjectId;
   v8::Isolate* m_isolate;
-  protocol::HashMap<int, std::unique_ptr<v8::Global<v8::Value>>>
-      m_idToWrappedObject;
+  protocol::HashMap<int, v8::Global<v8::Value>> m_idToWrappedObject;
   typedef protocol::HashMap<int, String16> IdToObjectGroupName;
   IdToObjectGroupName m_idToObjectGroupName;
   typedef protocol::HashMap<String16, std::vector<int>> NameToObjectGroup;