Validate hash_sha256 checksum on .crx update.

extensions/browser/updater/extension_downloader.cc

Index: extensions/browser/updater/extension_downloader.cc
diff --git a/extensions/browser/updater/extension_downloader.cc b/extensions/browser/updater/extension_downloader.cc
index da4ff410bf4a2f1a6f29f5b88f3de58c4779ba47..0425c18ee2dff92cbe728de4289386584921676b 100644
--- a/extensions/browser/updater/extension_downloader.cc
+++ b/extensions/browser/updater/extension_downloader.cc
@@ -731,13 +731,10 @@ 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(
+      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);
 }