Keep only base/extractor.[cc|h].

base/omaha_version.cc

-// Copyright 2007-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-
-#include "omaha/base/omaha_version.h"
-#include "omaha/base/app_util.h"
-#include "omaha/base/debug.h"
-#include "omaha/base/file_ver.h"
-#include "omaha/base/logging.h"
-#include "omaha/base/utils.h"
-
-namespace {
-
-// The version string is not visible outside this module and it is only
-// accessible through the omaha::GetVersionString accessor.
-CString version_string;
-
-ULONGLONG omaha_version = 0;
-
-}  // namespace
-
-namespace omaha {
-
-// In both GetVersion* methods, we assert only that InitializeVersion* was
-// already called and not that they weren't called twice, which is OK.
-// There is no detection that the version_ variables aren't accessed before
-// being initialized because this would require accessor methods to enforce and
-// lead to bloat.
-
-const TCHAR* GetVersionString() {
-  ASSERT1(!version_string.IsEmpty());
-  return version_string;
-}
-
-ULONGLONG GetVersion() {
-  ASSERT1(!version_string.IsEmpty());
-  return omaha_version;
-}
-
-void InitializeVersionFromModule(HINSTANCE instance) {
-  ULONGLONG module_version = app_util::GetVersionFromModule(instance);
-
-  InitializeVersion(module_version);
-}
-
-void InitializeVersion(ULONGLONG version) {
-  omaha_version = version;
-
-  version_string = StringFromVersion(omaha_version);
-}
-
-}  // namespace omaha