Move BaseDropTarget and BaseDragSource from base to app/win. Remove the "Base...

base/base_drag_source.cc

-// Copyright (c) 2006-2008 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 "base/base_drag_source.h"
-
-///////////////////////////////////////////////////////////////////////////////
-// BaseDragSource, public:
-
-BaseDragSource::BaseDragSource() : cancel_drag_(false) {
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// BaseDragSource, IDropSource implementation:
-
-HRESULT BaseDragSource::QueryContinueDrag(BOOL escape_pressed,
-                                          DWORD key_state) {
-  if (cancel_drag_)
-    return DRAGDROP_S_CANCEL;
-
-  if (escape_pressed) {
-    OnDragSourceCancel();
-    return DRAGDROP_S_CANCEL;
-  }
-
-  if (!(key_state & MK_LBUTTON)) {
-    OnDragSourceDrop();
-    return DRAGDROP_S_DROP;
-  }
-
-  OnDragSourceMove();
-  return S_OK;
-}
-
-HRESULT BaseDragSource::GiveFeedback(DWORD effect) {
-  return DRAGDROP_S_USEDEFAULTCURSORS;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// BaseDragSource, IUnknown implementation:
-
-HRESULT BaseDragSource::QueryInterface(const IID& iid, void** object) {
-  *object = NULL;
-  if (IsEqualIID(iid, IID_IUnknown) || IsEqualIID(iid, IID_IDropSource)) {
-    *object = this;
-  } else {
-    return E_NOINTERFACE;
-  }
-  AddRef();
-  return S_OK;
-}
-
-ULONG BaseDragSource::AddRef() {
-  base::RefCountedThreadSafe<BaseDragSource>::AddRef();
-  return 0;
-}
-
-ULONG BaseDragSource::Release() {
-  base::RefCountedThreadSafe<BaseDragSource>::Release();
-  return 0;
-}