Switch SignatureVerifier to taking an algorithm enum.

components/update_client/component_unpacker.cc

 // Copyright 2014 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 "components/update_client/component_unpacker.h"
 
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_file.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
-#include "components/crx_file/constants.h"
 #include "components/crx_file/crx_file.h"
 #include "components/update_client/component_patcher.h"
 #include "components/update_client/component_patcher_operation.h"
 #include "components/update_client/update_client.h"
 #include "crypto/secure_hash.h"
 #include "crypto/sha2.h"
 #include "third_party/zlib/google/zip.h"
 
 using crypto::SecureHash;
 using crx_file::CrxFile;
@@ skipping 172 matching lines @@
   if (!unpack_path_.empty())
     base::DeleteFile(unpack_path_, true);
   task_runner_->PostTask(FROM_HERE,
                          base::Bind(callback_, error_, extended_error_));
 }
 
 ComponentUnpacker::~ComponentUnpacker() {
 }
 
 }  // namespace update_client