Cleanup of system settings constants (ab)use.

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

Index: chrome/browser/ui/webui/options/chromeos/proxy_handler.cc
diff --git a/chrome/browser/ui/webui/options/chromeos/proxy_handler.cc b/chrome/browser/ui/webui/options/chromeos/proxy_handler.cc
index 92bab43dd44fab28cbdf213e34d929ac1c5e5b6b..0f4af1b17eb6381c70898337fe200f4859fa7dde 100644
--- a/chrome/browser/ui/webui/options/chromeos/proxy_handler.cc
+++ b/chrome/browser/ui/webui/options/chromeos/proxy_handler.cc
@@ -70,7 +70,7 @@ void ProxyHandler::InitializePage() {
 
   bool keyboard_driven_oobe = false;
   system::StatisticsProvider::GetInstance()->GetMachineFlag(
-      chromeos::kOemKeyboardDrivenOobeKey, &keyboard_driven_oobe);
+      chromeos::system::kOemKeyboardDrivenOobeKey, &keyboard_driven_oobe);
   if (keyboard_driven_oobe) {
     web_ui()->CallJavascriptFunction(
         "DetailsInternetPage.initializeKeyboardFlow");