Replace ToLower calls to the new format

components/os_crypt/ie7_password_win.cc

Index: components/os_crypt/ie7_password_win.cc
diff --git a/components/os_crypt/ie7_password_win.cc b/components/os_crypt/ie7_password_win.cc
index a2691f9951051f9987f48ea7c56ba2b974b7d8e1..eebd57b37809cbb335092cf72d5de1ada7c521f1 100644
--- a/components/os_crypt/ie7_password_win.cc
+++ b/components/os_crypt/ie7_password_win.cc
@@ -95,7 +95,7 @@ bool GetUserPassFromData(const std::vector<unsigned char>& data,
 }
 
 std::wstring GetUrlHash(const std::wstring& url) {
-  std::wstring lower_case_url = base::StringToLowerASCII(url);
+  std::wstring lower_case_url = base::ToLowerASCII(url);
   // Get a data buffer out of our std::wstring to pass to SHA1HashString.
   std::string url_buffer(
       reinterpret_cast<const char*>(lower_case_url.c_str()),
@@ -121,7 +121,7 @@ std::wstring GetUrlHash(const std::wstring& url) {
 bool DecryptPasswords(const std::wstring& url,
                       const std::vector<unsigned char>& data,
                       std::vector<DecryptedCredentials>* credentials) {
-  std::wstring lower_case_url = base::StringToLowerASCII(url);
+  std::wstring lower_case_url = base::ToLowerASCII(url);
   DATA_BLOB input = {0};
   DATA_BLOB output = {0};
   DATA_BLOB url_key = {0};