Add login screen locale and input method device policies

chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/policy/device_policy_decoder_chromeos.h"
 
 #include <limits>
 #include <string>
 
 #include "base/callback.h"
@@ skipping 835 matching lines @@
         policy.device_wallpaper_image());
     if (container.has_device_wallpaper_image()) {
       std::unique_ptr<base::DictionaryValue> dict_val =
           base::DictionaryValue::From(
               base::JSONReader::Read(container.device_wallpaper_image()));
       policies->Set(key::kDeviceWallpaperImage, POLICY_LEVEL_MANDATORY,
                     POLICY_SCOPE_MACHINE, POLICY_SOURCE_CLOUD,
                     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
 
 void DecodeDevicePolicy(const em::ChromeDeviceSettingsProto& policy,
                         PolicyMap* policies) {
   // Decode the various groups of policies.
   DecodeLoginPolicies(policy, policies);
   DecodeNetworkPolicies(policy, policies);
   DecodeReportingPolicies(policy, policies);
   DecodeAutoUpdatePolicies(policy, policies);
   DecodeAccessibilityPolicies(policy, policies);
   DecodeGenericPolicies(policy, policies);
 }
 
 }  // namespace policy