extensions: Generate hash of extension ID at a higher level

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 <memory>
@@ skipping 59 matching lines @@
     return IsAvailableToContext(extension, context, GURL(), platform);
   }
   Availability IsAvailableToContext(const Extension* extension,
                                     Context context,
                                     const GURL& url) const {
     return IsAvailableToContext(extension, context, url, GetCurrentPlatform());
   }
 
   // extension::Feature:
   Availability IsAvailableToManifest(const std::string& extension_id,
+                                     const std::string& hashed_id,
                                      Manifest::Type type,
                                      Manifest::Location location,
                                      int manifest_version,
                                      Platform platform) const override;
 
   Availability IsAvailableToContext(const Extension* extension,
                                     Context context,
                                     const GURL& url,
                                     Platform platform) const override;
 
   std::string GetAvailabilityMessage(AvailabilityResult result,
                                      Manifest::Type type,
                                      const GURL& url,
                                      Context context) const override;
 
   bool IsInternal() const override;
 
-  bool IsIdInBlacklist(const std::string& extension_id) const override;
-  bool IsIdInWhitelist(const std::string& extension_id) const override;
+  bool IsIdInBlacklist(const std::string& extension_id,
+                       const std::string& hashed_id) const override;
+  bool IsIdInWhitelist(const std::string& extension_id,
+                       const std::string& hashed_id) const override;
 
   static bool IsIdInArray(const std::string& extension_id,
                           const char* const array[],
                           size_t array_length);
 
  protected:
   // Similar to Manifest::Location, these are the classes of locations
   // supported in feature files. Production code should never directly access
   // these.
   enum Location {
@@ skipping 97 matching lines @@
   std::string command_line_switch_;
 
   std::vector<std::unique_ptr<SimpleFeatureFilter>> filters_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleFeature);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_FEATURES_SIMPLE_FEATURE_H_