Move Declarative Web Request API out of experimental and make it a feature

chrome/common/extensions/extension_permission_set.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/common/extensions/extension_permission_set.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 167 matching lines @@
   info->RegisterPermission(
       kBackground, "background", 0,
       ExtensionPermissionMessage::kNone, kFlagNone);
   info->RegisterPermission(
       kClipboardRead, "clipboardRead", IDS_EXTENSION_PROMPT_WARNING_CLIPBOARD,
       ExtensionPermissionMessage::kClipboard, kFlagNone);
   info->RegisterPermission(
       kClipboardWrite, "clipboardWrite",  0,
       ExtensionPermissionMessage::kNone, kFlagNone);
   info->RegisterPermission(
+      kDeclarative, "declarative", 0,
+      ExtensionPermissionMessage::kNone, kFlagNone);
+  info->RegisterPermission(
+      kDeclarativeWebRequest, "declarativeWebRequest", 0,
+      ExtensionPermissionMessage::kNone, kFlagNone);
+  info->RegisterPermission(
       kExperimental, "experimental", 0,
       ExtensionPermissionMessage::kNone, kFlagCannotBeOptional);
   info->RegisterPermission(
       kGeolocation, "geolocation", IDS_EXTENSION_PROMPT_WARNING_GEOLOCATION,
       ExtensionPermissionMessage::kGeolocation,
       kFlagCannotBeOptional);
   info->RegisterPermission(
       kNotification, "notifications", 0,
       ExtensionPermissionMessage::kNone, kFlagNone);
   info->RegisterPermission(
@@ skipping 758 matching lines @@
   ExtensionOAuth2Scopes current_scopes = scopes();
   ExtensionOAuth2Scopes new_scopes = permissions->scopes();
   ExtensionOAuth2Scopes delta_scopes;
   std::set_difference(new_scopes.begin(), new_scopes.end(),
                       current_scopes.begin(), current_scopes.end(),
                       std::inserter(delta_scopes, delta_scopes.begin()));
 
   // We have less privileges if there are additional scopes present.
   return !delta_scopes.empty();
 }