Push registration should read a "gcm_user_visible_only" key from the Manifest.

content/renderer/manifest/manifest_parser.h

 // 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.
 
 #ifndef CONTENT_RENDERER_MANIFEST_MANIFEST_PARSER_H_
 #define CONTENT_RENDERER_MANIFEST_MANIFEST_PARSER_H_
 
 #include "base/strings/nullable_string16.h"
 #include "base/strings/string_piece.h"
 #include "content/common/content_export.h"
@@ skipping 25 matching lines @@
   const std::vector<std::string>& errors() const;
   bool failed() const;
 
  private:
   // Used to indicate whether to strip whitespace when parsing a string.
   enum TrimType {
     Trim,
     NoTrim
   };
 
+  // Helper function to parse booleans present on a given |dictionary| in a
+  // given field identified by its |key|.
+  // Returns the parsed boolean if any, or |default_value| if parsing failed.
+  bool ParseBoolean(const base::DictionaryValue& dictionary,
+                    const std::string& key,
+                    bool default_value);
+
   // Helper function to parse strings present on a given |dictionary| in a given
   // field identified by its |key|.
   // Returns the parsed string if any, a null string if the parsing failed.
   base::NullableString16 ParseString(const base::DictionaryValue& dictionary,
                                      const std::string& key,
                                      TrimType trim);
 
   // Helper function to parse URLs present on a given |dictionary| in a given
   // field identified by its |key|. The URL is first parsed as a string then
   // resolved using |base_url|.
@@ skipping 60 matching lines @@
   // any. An empty vector if the field was not present or empty.
   std::vector<Manifest::Icon> ParseIcons(
       const base::DictionaryValue& dictionary);
 
   // Parses the 'gcm_sender_id' field of the manifest.
   // This is a proprietary extension of the Web Manifest specification.
   // Returns the parsed string if any, a null string if the parsing failed.
   base::NullableString16 ParseGCMSenderID(
       const base::DictionaryValue& dictionary);
 
+  // Parses the 'gcm_user_visible_only' field of the manifest.
+  // This is a proprietary extension of the Web Manifest specification.
+  // Returns true iff the string could be parsed as the boolean true.
+  bool ParseGCMUserVisibleOnly(const base::DictionaryValue& dictionary);
+
   const base::StringPiece& data_;
   const GURL& manifest_url_;
   const GURL& document_url_;
 
   bool failed_;
   Manifest manifest_;
   std::vector<std::string> errors_;
 
   DISALLOW_COPY_AND_ASSIGN(ManifestParser);
 };
 
 } // namespace content
 
 #endif // CONTENT_RENDERER_MANIFEST_MANIFEST_PARSER_H_