Validate hash_sha256 checksum on .crx update.

extensions/browser/updater/extension_downloader.cc

 // 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.
 
 #include "extensions/browser/updater/extension_downloader.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 713 matching lines @@
     } else {
       extensions_queue_.ScheduleRequest(fetch_data.Pass());
     }
   }
 }
 
 void ExtensionDownloader::NotifyDelegateDownloadFinished(
     scoped_ptr<ExtensionFetch> fetch_data,
     const base::FilePath& crx_path,
     bool file_ownership_passed) {
-  delegate_->OnExtensionDownloadFinished(fetch_data->id,
-                                         crx_path,
-                                         file_ownership_passed,
-                                         fetch_data->url,
-                                         fetch_data->version,
-                                         ping_results_[fetch_data->id],
-                                         fetch_data->request_ids);
+  delegate_->OnExtensionDownloadFinished(
+      CRXFileInfo(fetch_data->id, crx_path, fetch_data->package_hash),
+      file_ownership_passed, fetch_data->url, fetch_data->version,
+      ping_results_[fetch_data->id], fetch_data->request_ids);
   ping_results_.erase(fetch_data->id);
 }
 
 void ExtensionDownloader::CreateExtensionFetcher() {
   const ExtensionFetch* fetch = extensions_queue_.active_request();
   extension_fetcher_.reset(net::URLFetcher::Create(
       kExtensionFetcherId, fetch->url, net::URLFetcher::GET, this));
   extension_fetcher_->SetRequestContext(request_context_.get());
   extension_fetcher_->SetAutomaticallyRetryOnNetworkChanges(3);
 
@@ skipping 201 matching lines @@
     const GURL& update_url,
     int request_id) {
   ManifestFetchData::PingMode ping_mode = ManifestFetchData::NO_PING;
   if (update_url.DomainIs(ping_enabled_domain_.c_str()))
     ping_mode = ManifestFetchData::PING_WITH_ENABLED_STATE;
   return new ManifestFetchData(
       update_url, request_id, brand_code_, manifest_query_params_, ping_mode);
 }
 
 }  // namespace extensions