Replace string by enum in WebParsedFeaturePolicyDeclaration#feature

content/common/frame_messages.h

 // 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.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 384 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(navigation_timing)
   IPC_STRUCT_TRAITS_MEMBER(service_worker_provider_id)
   IPC_STRUCT_TRAITS_MEMBER(appcache_host_id)
   IPC_STRUCT_TRAITS_MEMBER(has_user_gesture)
 #if defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(data_url_as_string)
 #endif
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::ParsedFeaturePolicyDeclaration)
-  IPC_STRUCT_TRAITS_MEMBER(feature_name)
+  IPC_STRUCT_TRAITS_MEMBER(feature)
   IPC_STRUCT_TRAITS_MEMBER(matches_all_origins)
   IPC_STRUCT_TRAITS_MEMBER(origins)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::FrameReplicationState)
   IPC_STRUCT_TRAITS_MEMBER(origin)
   IPC_STRUCT_TRAITS_MEMBER(sandbox_flags)
   IPC_STRUCT_TRAITS_MEMBER(name)
   IPC_STRUCT_TRAITS_MEMBER(unique_name)
   IPC_STRUCT_TRAITS_MEMBER(feature_policy_header)
@@ skipping 1195 matching lines @@
 // nearest find result in the sending frame.
 IPC_MESSAGE_ROUTED2(FrameHostMsg_GetNearestFindResult_Reply,
                     int /* nfr_request_id */,
                     float /* distance */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent FrameMsg, then ifdefs for platform specific FrameMsg, then
 // platform independent FrameHostMsg, then ifdefs for platform specific
 // FrameHostMsg.