Remove CreateEmptyExtension from extension_function_test_utils

extensions/common/test_util.cc

Index: extensions/common/test_util.cc
diff --git a/extensions/common/test_util.cc b/extensions/common/test_util.cc
index 03b35b84801522cd6f945ee3b99549e9a9efb362..e003ea1fd13da00c78e8a3d8d43264dc8a260a7c 100644
--- a/extensions/common/test_util.cc
+++ b/extensions/common/test_util.cc
@@ -6,6 +6,7 @@
 
 #include "base/json/json_reader.h"
 #include "base/values.h"
+#include "components/crx_file/id_util.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_builder.h"
 #include "extensions/common/value_builder.h"
@@ -23,15 +24,13 @@ ExtensionBuilder& BuildExtension(ExtensionBuilder& builder) {
 }
 
 scoped_refptr<Extension> CreateEmptyExtension() {
-  scoped_refptr<Extension> empty_extension(
-      ExtensionBuilder()
-          .SetManifest(
-               DictionaryBuilder().Set("name", "Test").Set("version", "1.0"))
-          .Build());
-  return empty_extension;
+  return ExtensionBuilder()
+      .SetManifest(
+           DictionaryBuilder().Set("name", "Test").Set("version", "1.0"))
+      .Build();
 }
 
-scoped_refptr<Extension> CreateExtensionWithID(const std::string& id) {
+scoped_refptr<Extension> CreateEmptyExtension(const std::string& id) {
   return ExtensionBuilder()
       .SetManifest(
            DictionaryBuilder().Set("name", "test").Set("version", "0.1"))