[System-Keyboard-Lock] Add KeycodeConverter::CodeStringToNativeKeycode() function

ui/events/keycodes/dom/keycode_converter.cc

Index: ui/events/keycodes/dom/keycode_converter.cc
diff --git a/ui/events/keycodes/dom/keycode_converter.cc b/ui/events/keycodes/dom/keycode_converter.cc
index 94792e57bbcbba03e5a944a714b2fe53e04af6e1..1d5408c6da361ac086646e5d93336a70973d160e 100644
--- a/ui/events/keycodes/dom/keycode_converter.cc
+++ b/ui/events/keycodes/dom/keycode_converter.cc
@@ -75,6 +75,9 @@ int KeycodeConverter::InvalidNativeKeycode() {
   return usb_keycode_map[0].native_keycode;
 }
 
+// TODO(zijiehe): Most of the following functions can be optimized by using
+// either multiple arrays or unordered_map.
+
 // static
 DomCode KeycodeConverter::NativeKeycodeToDomCode(int native_keycode) {
   for (size_t i = 0; i < kKeycodeMapEntries; ++i) {
@@ -297,7 +300,7 @@ uint32_t KeycodeConverter::DomCodeToUsbKeycode(DomCode dom_code) {
 }
 
 // static
-uint32_t KeycodeConverter::CodeToUsbKeycode(const std::string& code) {
+uint32_t KeycodeConverter::CodeStringToUsbKeycode(const std::string& code) {
   if (code.empty())
     return InvalidUsbKeycode();
 
@@ -309,4 +312,9 @@ uint32_t KeycodeConverter::CodeToUsbKeycode(const std::string& code) {
   return InvalidUsbKeycode();
 }
 
+// static
+int KeycodeConverter::CodeStringToNativeKeycode(const std::string& code) {
+  return UsbKeycodeToNativeKeycode(CodeStringToUsbKeycode(code));
+}
+
 }  // namespace ui