Stop passing raw pointers to base::Value API in c/b/ui

chrome/browser/ui/webui/options/language_options_handler.cc

Index: chrome/browser/ui/webui/options/language_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/language_options_handler.cc b/chrome/browser/ui/webui/options/language_options_handler.cc
index 66c7e9cedeced45c79b22968c5ae578bb34bfc7e..1549192785d3aa1df4d2d7247579587bfa2949c3 100644
--- a/chrome/browser/ui/webui/options/language_options_handler.cc
+++ b/chrome/browser/ui/webui/options/language_options_handler.cc
@@ -15,6 +15,7 @@
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
+#include "base/memory/ptr_util.h"
 #include "base/metrics/user_metrics.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
@@ -57,7 +58,7 @@ void LanguageOptionsHandler::RegisterMessages() {
                  base::Unretained(this)));
 }
 
-base::ListValue* LanguageOptionsHandler::GetLanguageList() {
+std::unique_ptr<base::ListValue> LanguageOptionsHandler::GetLanguageList() {
   // Collect the language codes from the supported accept-languages.
   const std::string app_locale = g_browser_process->GetApplicationLocale();
   std::vector<std::string> language_codes;
@@ -91,7 +92,7 @@ base::ListValue* LanguageOptionsHandler::GetLanguageList() {
   l10n_util::SortStrings16(app_locale, &display_names);
 
   // Build the language list from the language map.
-  base::ListValue* language_list = new base::ListValue();
+  auto language_list = base::MakeUnique<base::ListValue>();
   for (size_t i = 0; i < display_names.size(); ++i) {
     base::string16& display_name = display_names[i];
     base::string16 adjusted_display_name(display_name);