Move component updater artifacts into component_updater namespace.

chrome/browser/component_updater/component_unpacker.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 "chrome/browser/component_updater/component_unpacker.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/logging.h"
 #include "base/memory/scoped_handle.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/component_updater/component_patcher.h"
 #include "chrome/browser/component_updater/component_updater_service.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "crypto/secure_hash.h"
 #include "crypto/signature_verifier.h"
 #include "extensions/common/crx_file.h"
 #include "third_party/zlib/google/zip.h"
 
 using crypto::SecureHash;
 
+namespace component_updater {
+
 namespace {
 
 // This class makes sure that the CRX digital signature is valid
 // and well formed.
 class CRXValidator {
  public:
   explicit CRXValidator(FILE* crx_file) : valid_(false), delta_(false) {
     extensions::CrxFile::Header header;
     size_t len = fread(&header, 1, sizeof(header), crx_file);
     if (len < sizeof(header))
@@ skipping 164 matching lines @@
     return;
   }
   // Installation successful. The directory is not our concern now.
   unpack_path_.clear();
 }
 
 ComponentUnpacker::~ComponentUnpacker() {
   if (!unpack_path_.empty())
     base::DeleteFile(unpack_path_, true);
 }
+
+}  // namespace component_updater
+