diff --git a/chromeos-dbus-bindings/header_generator.cc b/chromeos-dbus-bindings/header_generator.cc
index d69cd1c..6989ffa 100644
--- a/chromeos-dbus-bindings/header_generator.cc
+++ b/chromeos-dbus-bindings/header_generator.cc
@@ -25,9 +25,9 @@
   string guard = base::StringPrintf("____chromeos_dbus_binding__%s",
                                     output_file.value().c_str());
   for (auto& c : guard) {
-    if (IsAsciiAlpha(c)) {
+    if (base::IsAsciiAlpha(c)) {
       c = base::ToUpperASCII(c);
-    } else if (!IsAsciiDigit(c)) {
+    } else if (!base::IsAsciiDigit(c)) {
       c = '_';
     }
   }
diff --git a/chromeos-dbus-bindings/indented_text.cc b/chromeos-dbus-bindings/indented_text.cc
index 2af6419..8831bf9 100644
--- a/chromeos-dbus-bindings/indented_text.cc
+++ b/chromeos-dbus-bindings/indented_text.cc
@@ -76,7 +76,8 @@
         lines_out.push_back(line.substr(pos));
       }
     } else {
-      if (base::StartsWithASCII(line, trim_prefix, false)) {
+      if (base::StartsWith(line, trim_prefix,
+                           base::CompareCase::INSENSITIVE_ASCII)) {
         line = line.substr(trim_prefix.length());
       } else {
         base::TrimWhitespaceASCII(line, base::TRIM_LEADING, &line);