Skip parameter replacements where old text != old name.

tools/clang/rewrite_to_chrome_style/tests/template-original.cc

Index: tools/clang/rewrite_to_chrome_style/tests/template-original.cc
diff --git a/tools/clang/rewrite_to_chrome_style/tests/template-original.cc b/tools/clang/rewrite_to_chrome_style/tests/template-original.cc
index b97e8ea2973f87cdfadb5099097b2acab966d0d6..9daff65b9fe138424e8845e582cec054b1cba8db 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/template-original.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/template-original.cc
@@ -140,4 +140,25 @@ struct Class2 {
 
 }  // namespace test_template_arg_is_method_template_in_member_context
 
+namespace test_unnamed_arg {
+
+template <typename T>
+class Class {
+ public:
+  // Test for https://crbug.com/598141 - shouldn't rewrite
+  //    ...int);
+  // into
+  //    ...intdata_size;
+  void f(int);
+};
+
+template <typename T>
+void Class<T>::f(int dataSize) {};
+
+void foo() {
+  Class<char>().f(123);
+};
+
+}  // namespace test_unnamed_arg
+
 }  // namespace blink