Support API aliases

extensions/common/features/simple_feature.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 EXTENSIONS_COMMON_FEATURES_SIMPLE_FEATURE_H_
 #define EXTENSIONS_COMMON_FEATURES_SIMPLE_FEATURE_H_
 
 #include <stddef.h>
 
 #include <initializer_list>
@@ skipping 58 matching lines @@
                                      Manifest::Location location,
                                      int manifest_version,
                                      Platform platform) const override;
   Availability IsAvailableToContext(const Extension* extension,
                                     Context context,
                                     const GURL& url,
                                     Platform platform) const override;
   bool IsInternal() const override;
   bool IsIdInBlacklist(const std::string& extension_id) const override;
   bool IsIdInWhitelist(const std::string& extension_id) const override;
+  std::string GetAlias() const override;
+  std::string GetSource() const override;
 
   static bool IsIdInArray(const std::string& extension_id,
                           const char* const array[],
                           size_t array_length);
 
   // Similar to Manifest::Location, these are the classes of locations
   // supported in feature files. These should only be used in this class and in
   // generated files.
   enum Location {
     UNSPECIFIED_LOCATION,
@@ skipping 27 matching lines @@
   void set_matches(std::initializer_list<const char* const> matches);
   void set_max_manifest_version(int max_manifest_version) {
     max_manifest_version_ = max_manifest_version;
   }
   void set_min_manifest_version(int min_manifest_version) {
     min_manifest_version_ = min_manifest_version;
   }
   void set_noparent(bool no_parent) { no_parent_ = no_parent; }
   void set_platforms(std::initializer_list<Platform> platforms);
   void set_whitelist(std::initializer_list<const char* const> whitelist);
+  void set_alias(base::StringPiece alias);
+  void set_source(base::StringPiece source);
 
  protected:
   // Accessors used by subclasses in feature verification.
   const std::vector<std::string>& blacklist() const { return blacklist_; }
   const std::vector<std::string>& whitelist() const { return whitelist_; }
   const std::vector<Manifest::Type>& extension_types() const {
     return extension_types_;
   }
   const std::vector<Platform>& platforms() const { return platforms_; }
   const std::vector<Context>& contexts() const { return contexts_; }
@@ skipping 87 matching lines @@
   std::vector<Context> contexts_;
   std::vector<Platform> platforms_;
   URLPatternSet matches_;
   Location location_;
   int min_manifest_version_;
   int max_manifest_version_;
   bool component_extensions_auto_granted_;
   bool is_internal_;
   std::string command_line_switch_;
   std::unique_ptr<version_info::Channel> channel_;
+  std::string alias_;
+  std::string source_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleFeature);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_FEATURES_SIMPLE_FEATURE_H_