Remove support for the "gcm_user_visible_only" manifest key.

content/renderer/manifest/manifest_parser.cc

 // Copyright 2014 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 "content/renderer/manifest/manifest_parser.h"
 
 #include "base/json/json_reader.h"
 #include "base/strings/nullable_string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
@@ skipping 112 matching lines @@
   manifest_.name = ParseName(*dictionary);
   manifest_.short_name = ParseShortName(*dictionary);
   manifest_.start_url = ParseStartURL(*dictionary);
   manifest_.display = ParseDisplay(*dictionary);
   manifest_.orientation = ParseOrientation(*dictionary);
   manifest_.icons = ParseIcons(*dictionary);
   manifest_.related_applications = ParseRelatedApplications(*dictionary);
   manifest_.prefer_related_applications =
       ParsePreferRelatedApplications(*dictionary);
   manifest_.gcm_sender_id = ParseGCMSenderID(*dictionary);
-  manifest_.gcm_user_visible_only = ParseGCMUserVisibleOnly(*dictionary);
 
   ManifestUmaUtil::ParseSucceeded(manifest_);
 }
 
 const Manifest& ManifestParser::manifest() const {
   return manifest_;
 }
 
 const std::vector<std::string>& ManifestParser::errors() const {
   return errors_;
@@ skipping 258 matching lines @@
 bool ManifestParser::ParsePreferRelatedApplications(
     const base::DictionaryValue& dictionary) {
   return ParseBoolean(dictionary, "prefer_related_applications", false);
 }
 
 base::NullableString16 ManifestParser::ParseGCMSenderID(
     const base::DictionaryValue& dictionary)  {
   return ParseString(dictionary, "gcm_sender_id", Trim);
 }
 
-bool ManifestParser::ParseGCMUserVisibleOnly(
-    const base::DictionaryValue& dictionary) {
-  return ParseBoolean(dictionary, "gcm_user_visible_only", false);
-}
-
 } // namespace content