Introduce an extension parameter which is used to customize the extension. It's available for exter…

extensions/browser/pending_extension_manager.h

 // Copyright 2013 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_BROWSER_PENDING_EXTENSION_MANAGER_H_
 #define EXTENSIONS_BROWSER_PENDING_EXTENSION_MANAGER_H_
 
 #include <list>
 #include <string>
 
@@ skipping 72 matching lines @@
 
   // Adds an extension that was depended on by another extension.
   bool AddFromExtensionImport(
       const std::string& id,
       const GURL& update_url,
       PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install);
 
   // Given an extension id and an update URL, schedule the extension
   // to be fetched, installed, and activated.
   bool AddFromExternalUpdateUrl(const std::string& id,
+                                const std::string& install_parameter,
                                 const GURL& update_url,
                                 Manifest::Location location,
                                 int creation_flags,
                                 bool mark_acknowledged);
 
   // Add a pending extension record for an external CRX file.
   // Return true if the CRX should be installed, false if an existing
   // pending record overrides it.
   bool AddFromExternalFile(
       const std::string& id,
       Manifest::Location location,
       const base::Version& version,
       int creation_flags,
       bool mark_acknowledged);
 
   // Get the list of pending IDs that should be installed from an update URL.
   // Pending extensions that will be installed from local files will not be
   // included in the set.
   void GetPendingIdsForUpdateCheck(
       std::list<std::string>* out_ids_for_update_check) const;
 
  private:
   typedef std::list<PendingExtensionInfo> PendingExtensionList;
 
   // Assumes an extension with id |id| is not already installed.
   // Return true if the extension was added.
   bool AddExtensionImpl(
       const std::string& id,
+      const std::string& install_parameter,
       const GURL& update_url,
       const base::Version& version,
       PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install,
       bool is_from_sync,
       bool install_silently,
       Manifest::Location install_source,
       int creation_flags,
       bool mark_acknowledged);
 
   // Add a pending extension record directly.  Used for unit tests that need
@@ skipping 15 matching lines @@
   friend void SetupPendingExtensionManagerForTest(
       int count, const GURL& update_url,
       PendingExtensionManager* pending_extension_manager);
 
   DISALLOW_COPY_AND_ASSIGN(PendingExtensionManager);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_PENDING_EXTENSION_MANAGER_H_