Part 2 of base::IDMap refactor to eliminate IDMapOwnPointer/IDMapExternalPointer modes

content/renderer/java/gin_java_bridge_dispatcher.h

Index: content/renderer/java/gin_java_bridge_dispatcher.h
diff --git a/content/renderer/java/gin_java_bridge_dispatcher.h b/content/renderer/java/gin_java_bridge_dispatcher.h
index fc9c98e8d45df5ce20a14cb59dd05a0ef2195022..6c1308f2ba05636354b42708fe833dec547bb64b 100644
--- a/content/renderer/java/gin_java_bridge_dispatcher.h
+++ b/content/renderer/java/gin_java_bridge_dispatcher.h
@@ -34,8 +34,8 @@ class GinJavaBridgeDispatcher
   // when it is no more referenced from JS. As GinJavaBridgeObject reports
   // deletion of self to GinJavaBridgeDispatcher, we would not have stale
   // pointers here.
-  typedef IDMap<GinJavaBridgeObject, IDMapExternalPointer> ObjectMap;
-  typedef ObjectMap::KeyType ObjectID;
+  using ObjectMap = IDMap<GinJavaBridgeObject*>;
+  using ObjectID = ObjectMap::KeyType;
 
   explicit GinJavaBridgeDispatcher(RenderFrame* render_frame);
   ~GinJavaBridgeDispatcher() override;