Move LowerCaseEqualsASCII to base namespace

base/files/file_util_unittest.cc

Index: base/files/file_util_unittest.cc
diff --git a/base/files/file_util_unittest.cc b/base/files/file_util_unittest.cc
index 1d8eeef653519a2b1492d2eeaecd7b6724a95298..52581f8ce4310a9af5c887831d134ae11c93b795 100644
--- a/base/files/file_util_unittest.cc
+++ b/base/files/file_util_unittest.cc
@@ -2498,7 +2498,9 @@ TEST(ScopedFD, ScopedFDDoesClose) {
   ASSERT_EQ(0, pipe(fds));
   const int write_end = fds[1];
   ScopedFD read_end_closer(fds[0]);
-  { ScopedFD write_end_closer(fds[1]); }
+  {
+    ScopedFD write_end_closer(fds[1]);
+  }
   // This is the only thread. This file descriptor should no longer be valid.
   int ret = close(write_end);
   EXPECT_EQ(-1, ret);