Filter out hidden files, both when loading extensions and when

chrome/browser/extensions/extension_creator.cc

 // Copyright (c) 2009 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 "chrome/browser/extensions/extension_creator.h"
 
 #include <vector>
 #include <string>
 
 #include "base/crypto/rsa_private_key.h"
@@ skipping 105 matching lines @@
   }
 
   return key_pair.release();
 }
 
 bool ExtensionCreator::CreateZip(const FilePath& extension_dir,
                                  FilePath* zip_path) {
   file_util::CreateNewTempDirectory(FILE_PATH_LITERAL("chrome_"), zip_path);
   *zip_path = zip_path->Append(FILE_PATH_LITERAL("extension.zip"));
 
-  if (!Zip(extension_dir, *zip_path)) {
+  if (!Zip(extension_dir, *zip_path, false)) {  // no hidden files
     error_message_ = "Failed to create temporary zip file during packaging.";
     return false;
   }
 
   return true;
 }
 
 bool ExtensionCreator::SignZip(const FilePath& zip_path,
                                base::RSAPrivateKey* private_key,
                                std::vector<uint8>* signature) {
@@ skipping 90 matching lines @@
   bool result = false;
   if (CreateZip(extension_dir, &zip_path) &&
       SignZip(zip_path, key_pair.get(), &signature) &&
       WriteCRX(zip_path, key_pair.get(), signature, crx_path)) {
     result = true;
   }
 
   file_util::Delete(zip_path, false);
   return result;
 }