chrome: Use base's ContainsValue helper function instead of std::find

chrome/browser/chromeos/login/screens/controller_pairing_screen.cc

Index: chrome/browser/chromeos/login/screens/controller_pairing_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/controller_pairing_screen.cc b/chrome/browser/chromeos/login/screens/controller_pairing_screen.cc
index 02504a6b6e96cea7d47c1e15367cbc7da3805a01..f721596d198a0e029e7076a13a3812f63489de10 100644
--- a/chrome/browser/chromeos/login/screens/controller_pairing_screen.cc
+++ b/chrome/browser/chromeos/login/screens/controller_pairing_screen.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/chromeos/login/screens/controller_pairing_screen.h"
 
 #include "base/command_line.h"
+#include "base/stl_util.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "google_apis/gaia/gaia_auth_util.h"
@@ -152,8 +153,7 @@ void ControllerPairingScreen::DiscoveredDevicesListChanged() {
       kContextKeyPage,
       devices.empty() ? kPageDevicesDiscovery : kPageDeviceSelect);
   std::string selected_device = context_.GetString(kContextKeySelectedDevice);
-  if (std::find(devices.begin(), devices.end(), selected_device) ==
-      devices.end()) {
+  if (!ContainsValue(devices, selected_device)) {

[sky, 2016/03/02 17:19:34]

nit: no {}

[chakshu, 2016/03/07 08:10:46]

Done.

     selected_device.clear();
   }
   if (devices.empty()) {