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

base/wmi_query.h

-// Copyright 2006-2009 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.
-// ========================================================================
-
-#ifndef OMAHA_COMMON_WMI_QUERY_H_
-#define OMAHA_COMMON_WMI_QUERY_H_
-
-#include <windows.h>
-#include <wbemidl.h>
-#include <atlbase.h>
-#include <atlcomcli.h>
-#include <atlstr.h>
-#include "base/basictypes.h"
-
-namespace omaha {
-
-class WmiQuery {
- public:
-  WmiQuery();
-  ~WmiQuery();
-
-  // Connects to the server to get WMI service.
-  HRESULT Connect(const TCHAR* resource);
-
-  // Queries the service.
-  HRESULT Query(const TCHAR* query);
-
-  // Reads the next row.
-  HRESULT Next();
-
-  // Returns true at the end.
-  bool AtEnd();
-
-  // Gets the value of the named property.
-  HRESULT GetValue(const TCHAR* name, CComVariant* value);
-  HRESULT GetValue(const TCHAR* name, CString* value);
-  HRESULT GetValue(const TCHAR* name, bool* value);
-  HRESULT GetValue(const TCHAR* name, int* value);
-  HRESULT GetValue(const TCHAR* name, uint32* value);
-
- private:
-  CComPtr<IWbemLocator> wbem_;
-  CComPtr<IWbemServices> service_;
-  CComPtr<IEnumWbemClassObject> enumerator_;
-  CComPtr<IWbemClassObject> obj_;
-  bool at_end_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(WmiQuery);
-};
-
-}  // namespace omaha
-
-#endif  // OMAHA_COMMON_WMI_QUERY_H_
-