Add policy to restrict client domain for Me2Me.

remoting/host/policy_watcher.cc

 // Copyright 2015 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.
 
 // Most of this code is copied from:
 //   src/chrome/browser/policy/asynchronous_policy_loader.{h,cc}
 
 #include "remoting/host/policy_watcher.h"
 
 #include <utility>
@@ skipping 161 matching lines @@
       owned_schema_registry_(std::move(owned_schema_registry)),
       owned_policy_provider_(std::move(owned_policy_provider)),
       owned_policy_service_(std::move(owned_policy_service)) {
   DCHECK(policy_service_);
   DCHECK(owned_schema_registry_);
 
   // Initialize the default values for each policy.
   default_values_->SetBoolean(key::kRemoteAccessHostFirewallTraversal, true);
   default_values_->SetBoolean(key::kRemoteAccessHostRequireCurtain, false);
   default_values_->SetBoolean(key::kRemoteAccessHostMatchUsername, false);
+  default_values_->SetString(key::kRemoteAccessHostClientDomain, std::string());
   default_values_->SetString(key::kRemoteAccessHostDomain, std::string());
   default_values_->SetString(key::kRemoteAccessHostTalkGadgetPrefix,
                              kDefaultHostTalkGadgetPrefix);
   default_values_->SetString(key::kRemoteAccessHostTokenUrl, std::string());
   default_values_->SetString(key::kRemoteAccessHostTokenValidationUrl,
                              std::string());
   default_values_->SetString(
       key::kRemoteAccessHostTokenValidationCertificateIssuer, std::string());
   default_values_->SetBoolean(key::kRemoteAccessHostAllowClientPairing, true);
   default_values_->SetBoolean(key::kRemoteAccessHostAllowGnubbyAuth, true);
@@ skipping 178 matching lines @@
       policy::POLICY_SCOPE_MACHINE));
 #else
 #error OS that is not yet supported by PolicyWatcher code.
 #endif
 
   return PolicyWatcher::CreateFromPolicyLoader(std::move(policy_loader));
 #endif  // !(OS_CHROMEOS)
 }
 
 }  // namespace remoting