[HBD] Placeholder for Flash content without fallback.

chrome/common/render_messages.h

 // 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.
 
 // Multiply-included file, no traditional include guard.
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 14 matching lines @@
 #include "third_party/WebKit/public/platform/modules/app_banner/WebAppBannerPromptReply.h"
 #include "third_party/WebKit/public/web/WebConsoleMessage.h"
 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 #include "ui/base/window_open_disposition.h"
 #include "url/ipc/url_param_traits.h"
 
 // Singly-included section for enums and custom IPC traits.
 #ifndef CHROME_COMMON_RENDER_MESSAGES_H_
 #define CHROME_COMMON_RENDER_MESSAGES_H_
 
+// These are only used internally, so the order does not matter.
 enum class ChromeViewHostMsg_GetPluginInfo_Status {
   kAllowed,
   kBlocked,
   kBlockedByPolicy,
+  kComponentUpdateRequired,
   kDisabled,
+  kFlashHiddenPreferHtml,
   kNotFound,
   kOutdatedBlocked,
   kOutdatedDisallowed,
   kPlayImportantContent,
-  kComponentUpdateRequired,
   kUnauthorized,
 };
 
 namespace IPC {
 
 template <>
 struct ParamTraits<ContentSettingsPattern> {
   typedef ContentSettingsPattern param_type;
   static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
@@ skipping 515 matching lines @@
 
 // Record a sample string to a Rappor metric.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_RecordRappor,
                      std::string /* metric */,
                      std::string /* sample */)
 
 // Record a domain and registry of a url to a Rappor metric.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_RecordRapporURL,
                      std::string /* metric */,
                      GURL /* sample url */)