lambda test

base/strings/utf_string_conversions.cc

Index: base/strings/utf_string_conversions.cc
diff --git a/base/strings/utf_string_conversions.cc b/base/strings/utf_string_conversions.cc
index 9796eec5e15e40966c4d9c435f6832c6fea715c9..f1a334c1d93844737681bc71b0b32a82b9319db6 100644
--- a/base/strings/utf_string_conversions.cc
+++ b/base/strings/utf_string_conversions.cc
@@ -8,6 +8,14 @@
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversion_utils.h"
 
+#include <algorithm>
+#include <vector>
+
+void foo() {
+  std::vector<int> a;
+  std::sort(a.begin(), a.end(), [](int a, int b) { return a < b; });
+}
+
 namespace base {
 
 namespace {