chromeos: Fix chromeos TODO in input_method_util.h

chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc

Index: chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc b/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
index ea5c9b9fc0322531e114d8bb3f573c3914f6acb7..69e1fecbf30fa5ffe5abd65b23b6ff2023a6c8ff 100644
--- a/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
+++ b/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
@@ -101,8 +101,7 @@ ListValue* CrosLanguageOptionsHandler::GetInputMethodList(
     language_codes->SetBoolean(language_code, true);
     // Check kExtraLanguages to see if there are languages associated with
     // this input method. If these are present, add these.
-    for (size_t j = 0; j < arraysize(input_method::kExtraLanguages);
-         ++j) {
+    for (size_t j = 0; j < input_method::kExtraLanguagesLength; ++j) {
       const std::string extra_input_method_id =
           input_method::kExtraLanguages[j].input_method_id;
       const std::string extra_language_code =
@@ -130,8 +129,7 @@ ListValue* CrosLanguageOptionsHandler::GetLanguageList(
     language_codes.insert(language_code);
   }
   // Collect the language codes from kExtraLanguages.
-  for (size_t i = 0; i < arraysize(input_method::kExtraLanguages);
-       ++i) {
+  for (size_t i = 0; i < input_method::kExtraLanguagesLength; ++i) {
     const char* language_code =
         input_method::kExtraLanguages[i].language_code;
     language_codes.insert(language_code);