Add a policy to re-enable deprecated web platform features.

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"
 #include "chrome/browser/net/proxy_policy_handler.h"
 #include "chrome/browser/profiles/incognito_mode_policy_handler.h"
 #include "chrome/browser/search_engines/default_search_policy_handler.h"
 #include "chrome/common/pref_names.h"
 #include "components/password_manager/core/common/password_manager_pref_names.h"
 #include "components/policy/core/browser/autofill_policy_handler.h"
 #include "components/policy/core/browser/configuration_policy_handler.h"
 #include "components/policy/core/browser/configuration_policy_handler_list.h"
 #include "components/policy/core/browser/configuration_policy_handler_parameters.h"
 #include "components/policy/core/browser/url_blacklist_policy_handler.h"
 #include "components/policy/core/common/policy_details.h"
 #include "components/policy/core/common/policy_map.h"
 #include "components/policy/core/common/policy_pref_names.h"
 #include "components/policy/core/common/schema.h"
 #include "components/translate/core/common/translate_pref_names.h"
 #include "grit/component_strings.h"
 #include "policy/policy_constants.h"
+#include "webkit/common/webpreferences.h"
 
 #if !defined(OS_IOS)
 #include "chrome/browser/extensions/api/messaging/native_messaging_policy_handler.h"
 #include "chrome/browser/extensions/policy_handlers.h"
 #include "chrome/browser/net/disk_cache_dir_policy_handler.h"
 #include "chrome/browser/policy/file_selection_dialogs_policy_handler.h"
 #include "chrome/browser/policy/javascript_policy_handler.h"
 #include "chrome/browser/sessions/restore_on_startup_policy_handler.h"
 #include "chrome/browser/sync/sync_policy_handler.h"
 #include "extensions/browser/pref_names.h"
@@ skipping 446 matching lines @@
 #if !defined(OS_IOS)
 // Mapping from extension type names to Manifest::Type.
 StringToIntEnumListPolicyHandler::MappingEntry kExtensionAllowedTypesMap[] = {
   { "extension", extensions::Manifest::TYPE_EXTENSION },
   { "theme", extensions::Manifest::TYPE_THEME },
   { "user_script", extensions::Manifest::TYPE_USER_SCRIPT },
   { "hosted_app", extensions::Manifest::TYPE_HOSTED_APP },
   { "legacy_packaged_app", extensions::Manifest::TYPE_LEGACY_PACKAGED_APP },
   { "platform_app", extensions::Manifest::TYPE_PLATFORM_APP },
 };
+
+// Maps feature tags as specified in policy to the corresponding enum value.
+StringToIntEnumListPolicyHandler::MappingEntry
+    kEnableDeprecatedWebPlatformFeaturesMap[] = {
+  // TODO: Remove after 2015-04-30 per http://crbug.com/374782.
+  { "ShowModalDialog_EffectiveUntil20150430",
+    webkit_glue::DEPRECATED_FEATURE_SHOW_MODAL_DIALOG },
+};
 #endif  // !defined(OS_IOS)
 
 }  // namespace
 
 void PopulatePolicyHandlerParameters(PolicyHandlerParameters* parameters) {
 #if defined(OS_CHROMEOS)
   if (chromeos::UserManager::IsInitialized()) {
     const chromeos::User* user = chromeos::UserManager::Get()->GetActiveUser();
     if (user)
       parameters->user_id_hash = user->username_hash();
@@ skipping 50 matching lines @@
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new extensions::ExtensionURLPatternListPolicyHandler(
           key::kExtensionInstallSources,
           extensions::pref_names::kAllowedInstallSites)));
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new StringToIntEnumListPolicyHandler(
           key::kExtensionAllowedTypes,
           extensions::pref_names::kAllowedTypes,
           kExtensionAllowedTypesMap,
           kExtensionAllowedTypesMap + arraysize(kExtensionAllowedTypesMap))));
+  handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
+      new StringToIntEnumListPolicyHandler(
+          key::kEnableDeprecatedWebPlatformFeatures,
+          prefs::kWebKitEnableDeprecatedFeatures,
+          kEnableDeprecatedWebPlatformFeaturesMap,
+          kEnableDeprecatedWebPlatformFeaturesMap +
+              arraysize(kEnableDeprecatedWebPlatformFeaturesMap))));
 #endif  // !defined(OS_IOS)
 
 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new DiskCacheDirPolicyHandler()));
 
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new extensions::NativeMessagingHostListPolicyHandler(
           key::kNativeMessagingWhitelist,
           extensions::pref_names::kNativeMessagingWhitelist,
@@ skipping 159 matching lines @@
 #endif  // defined(OS_CHROMEOS)
 
 #if defined(OS_ANDROID) || defined(OS_IOS)
   handlers->AddHandler(make_scoped_ptr<ConfigurationPolicyHandler>(
       new ManagedBookmarksPolicyHandler()));
 #endif
   return handlers.Pass();
 }
 
 }  // namespace policy