Enable policy support for registering protocol handler.

chrome/browser/policy/configuration_policy_handler_list_factory.cc

 // Copyright 2013 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/policy/configuration_policy_handler_list_factory.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "base/values.h"
@@ skipping 566 matching lines @@
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new extensions::NativeMessagingHostListPolicyHandler(
           key::kNativeMessagingBlacklist,
           extensions::pref_names::kNativeMessagingBlacklist,
           true)));
 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
 
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new DownloadDirPolicyHandler));
+
+  handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
+      new SimpleSchemaValidatingPolicyHandler(
+          key::kRegisteredProtocolHandlers,
+          prefs::kPolicyRegisteredProtocolHandlers,
+          chrome_schema,
+          SCHEMA_STRICT,
+          SimpleSchemaValidatingPolicyHandler::RECOMMENDED_ALLOWED,
+          SimpleSchemaValidatingPolicyHandler::MANDATORY_PROHIBITED)));
 #endif
 
 #if defined(OS_CHROMEOS)
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new extensions::ExtensionListPolicyHandler(
           key::kAttestationExtensionWhitelist,
           prefs::kAttestationExtensionWhitelist,
           false)));
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       NetworkConfigurationPolicyHandler::CreateForDevicePolicy()));
@@ skipping 134 matching lines @@
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new ExternalDataPolicyHandler(key::kUserAvatarImage)));
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new ExternalDataPolicyHandler(key::kWallpaperImage)));
 #endif  // defined(OS_CHROMEOS)
 
   return handlers.Pass();
 }
 
 }  // namespace policy