Add login screen locale and input method device policies

chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc

Index: chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc
diff --git a/chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc b/chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc
index 301e4aa8c73a30b303da1920d885fb82993fabb1..d832537b5c6c94bdc724462f1be47e64aa69650c 100644
--- a/chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc
+++ b/chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc
@@ -853,6 +853,29 @@ void DecodeGenericPolicies(const em::ChromeDeviceSettingsProto& policy,
                     std::move(dict_val), nullptr);
     }
   }
+
+  if (policy.has_login_screen_locales()) {

[pastarmovj, 2017/01/25 15:42:20]

Hmm looking into the policies in this function it feels to me some belong in the
DecodeLoginPolicicies including yours. Can you go through the list and move some
there?

[pmarko, 2017/01/26 12:32:58]

Done. I've moved:
existing:
  LoginScreenPowerManagement
  LoginScreenDomaingAutoComplete
new:
  LoginScreenLocales
  LoginScreenInputMethods

Also moved LoginScreenLocales+LoginScreeInputMethods from DecodeGenericPolicies
to DecodeLoginPolicies in device_settings_provider.cc

+    std::unique_ptr<base::ListValue> locales(new base::ListValue);
+    const em::LoginScreenLocalesProto& login_screen_locales(
+        policy.login_screen_locales());
+    for (const auto& locale : login_screen_locales.login_screen_locales())
+      locales->AppendString(locale);
+    policies->Set(key::kDeviceLoginScreenLocales, POLICY_LEVEL_MANDATORY,
+                  POLICY_SCOPE_MACHINE, POLICY_SOURCE_CLOUD, std::move(locales),
+                  nullptr);
+  }
+
+  if (policy.has_login_screen_input_methods()) {
+    std::unique_ptr<base::ListValue> input_methods(new base::ListValue);
+    const em::LoginScreenInputMethodsProto& login_screen_input_methods(
+        policy.login_screen_input_methods());
+    for (const auto& input_method :
+         login_screen_input_methods.login_screen_input_methods())
+      input_methods->AppendString(input_method);
+    policies->Set(key::kDeviceLoginScreenInputMethods, POLICY_LEVEL_MANDATORY,
+                  POLICY_SCOPE_MACHINE, POLICY_SOURCE_CLOUD,
+                  std::move(input_methods), nullptr);
+  }
 }
 
 }  // namespace