Revert https://codereview.chromium.org/1060993003

extensions/browser/extension_function.cc

Index: extensions/browser/extension_function.cc
diff --git a/extensions/browser/extension_function.cc b/extensions/browser/extension_function.cc
index 744beaa80347fc0b97cbb8c63c1d46d80af2a28e..6a136b2c0613e69988afe123429e42314fb864ee 100644
--- a/extensions/browser/extension_function.cc
+++ b/extensions/browser/extension_function.cc
@@ -306,11 +306,6 @@ ExtensionFunction::ResponseValue ExtensionFunction::OneArgument(
       new ArgumentListResponseValue(name(), "OneArgument", this, args.Pass()));
 }
 
-ExtensionFunction::ResponseValue ExtensionFunction::OneArgument(
-    scoped_ptr<base::Value> arg) {
-  return OneArgument(arg.release());
-}
-
 ExtensionFunction::ResponseValue ExtensionFunction::TwoArguments(
     base::Value* arg1,
     base::Value* arg2) {