Convert remaining StringToLowerASCII to ToLowerASCII

net/base/filename_util.cc

Index: net/base/filename_util.cc
diff --git a/net/base/filename_util.cc b/net/base/filename_util.cc
index 01b9f636418d7e4f047b9da1ef8268742132ea39..0969f7155215884875a69992130e37098ef1db07 100644
--- a/net/base/filename_util.cc
+++ b/net/base/filename_util.cc
@@ -163,10 +163,9 @@ bool IsReservedNameOnWindows(const base::FilePath::StringType& filename) {
       "com5", "com6", "com7", "com8", "com9", "lpt1", "lpt2",  "lpt3",
       "lpt4", "lpt5", "lpt6", "lpt7", "lpt8", "lpt9", "clock$"};
 #if defined(OS_WIN)
-  std::string filename_lower =
-      base::StringToLowerASCII(base::WideToUTF8(filename));
+  std::string filename_lower = base::ToLowerASCII(base::WideToUTF8(filename));
 #elif defined(OS_POSIX)
-  std::string filename_lower = base::StringToLowerASCII(filename);
+  std::string filename_lower = base::ToLowerASCII(filename);
 #endif
 
   for (size_t i = 0; i < arraysize(known_devices); ++i) {