Cleanup/ Remove linked_ptr from gin_java_base_object.h/cc

content/browser/android/java/gin_java_bound_object.cc

Index: content/browser/android/java/gin_java_bound_object.cc
diff --git a/content/browser/android/java/gin_java_bound_object.cc b/content/browser/android/java/gin_java_bound_object.cc
index d281f8902b03da3a2b2683ccd960dd834d9cd3f1..706f81e02d8b2e5984a14ae2e2101cdbcb026c5f 100644
--- a/content/browser/android/java/gin_java_bound_object.cc
+++ b/content/browser/android/java/gin_java_bound_object.cc
@@ -183,8 +183,8 @@ void GinJavaBoundObject::EnsureMethodsAreSetUp() {
         continue;
     }
 
-    JavaMethod* method = new JavaMethod(java_method);
-    methods_.insert(std::make_pair(method->name(), make_linked_ptr(method)));
+    std::unique_ptr<JavaMethod> method(new JavaMethod(java_method));
+    methods_.insert(std::make_pair(method->name(), std::move(method)));
   }
 }