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

common/controlled_object.h

-// Copyright 2005-2009 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.
-// ========================================================================
-//
-// This class is similar to CComContainedObject. The primary difference is with
-// respect to QueryInterface, which this class handles itself, as opposed to
-// CComContainedObject that delegates that to the outer unknown.
-
-#ifndef OMAHA_COMMON_CONTROLLED_OBJECT_H_
-#define OMAHA_COMMON_CONTROLLED_OBJECT_H_
-
-#include <atlcom.h>
-#include "base/scoped_ptr.h"
-#include "omaha/base/debug.h"
-#include "omaha/base/logging.h"
-#include "omaha/base/scoped_ptr_address.h"
-
-namespace omaha {
-
-template <class Base>
-class ControlledObject : public CComContainedObject<Base> {
- public:
-  typedef CComContainedObject<Base> BaseClass;
-  typedef ControlledObject<Base> ControlledObj;
-
-  // The base class CComContainedObject stores pv, and delegates to this
-  // controlling unknown subsequent calls to the lifetime methods
-  // AddRef/Release.
-  explicit ControlledObject(void* pv) : BaseClass(pv) {}
-  virtual ~ControlledObject() {}
-
-  STDMETHOD(QueryInterface)(REFIID iid, void** ppv) throw() {
-    return _InternalQueryInterface(iid, ppv);
-  }
-
-  // TODO(omaha): ASSERT on controlling_unknown. The unit tests need to be
-  // fixed for this.
-  static HRESULT WINAPI CreateInstance(IUnknown* controlling_unknown,
-                                       ControlledObj** pp) throw() {
-    ASSERT1(pp);
-    if (!controlling_unknown) {
-      CORE_LOG(LW, (_T("[CreateInstance - controlling_unknown is NULL]")));
-    }
-
-    *pp = NULL;
-    scoped_ptr<ControlledObj> p(new ControlledObj(controlling_unknown));
-    if (!p.get()) {
-      return E_OUTOFMEMORY;
-    }
-
-    HRESULT hr = p->FinalConstruct();
-    if (FAILED(hr)) {
-      return hr;
-    }
-
-    *pp = p.release();
-    return S_OK;
-  }
-
-  template <class Q>
-  HRESULT STDMETHODCALLTYPE QueryInterface(Q** pp) throw() {
-    return QueryInterface(__uuidof(Q), reinterpret_cast<void**>(pp));
-  }
-};
-
-}  // namespace omaha
-
-#endif  // OMAHA_COMMON_CONTROLLED_OBJECT_H_
-