Don't send extension info for non-webstore extensions during update check

extensions/browser/updater/extension_downloader.h

 // Copyright (c) 2012 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_UPDATER_EXTENSION_DOWNLOADER_H_
 #define EXTENSIONS_BROWSER_UPDATER_EXTENSION_DOWNLOADER_H_
 
 #include <deque>
 #include <map>
 #include <memory>
@@ skipping 94 matching lines @@
   }
 
   void set_manifest_query_params(const std::string& params) {
     manifest_query_params_ = params;
   }
 
   void set_ping_enabled_domain(const std::string& domain) {
     ping_enabled_domain_ = domain;
   }
 
-  void set_enable_extra_update_metrics(bool enable) {
-    enable_extra_update_metrics_ = enable;
-  }
-
   // Sets a test delegate to use by any instances of this class. The |delegate|
   // should outlive all instances.
   static void set_test_delegate(ExtensionDownloaderTestDelegate* delegate);
 
   // These are needed for unit testing, to help identify the correct mock
   // URLFetcher objects.
   static const int kManifestFetcherId = 1;
   static const int kExtensionFetcherId = 2;
 
   // Update AppID for extension blacklist.
@@ skipping 194 matching lines @@
   // Brand code to include with manifest fetch queries if sending ping data.
   std::string brand_code_;
 
   // Baseline parameters to include with manifest fetch queries.
   std::string manifest_query_params_;
 
   // Domain to enable ping data. Ping data will be sent with manifest fetches
   // to update URLs which match this domain. Defaults to empty (no domain).
   std::string ping_enabled_domain_;
 
-  // Indicates whether or not extra metrics should be included with ping data.
-  // Defaults to |false|.
-  bool enable_extra_update_metrics_;
-
   // Used to create WeakPtrs to |this|.
   base::WeakPtrFactory<ExtensionDownloader> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionDownloader);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_UPDATER_EXTENSION_DOWNLOADER_H_