Move the core drag&drop code for Windows to content\browser to match Mac/GTK. I've had to add tempo…

chrome/browser/tab_contents/web_drag_utils_win.cc

-// Copyright (c) 2010 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/tab_contents/web_drag_utils_win.h"
-
-#include <oleidl.h>
-#include "base/logging.h"
-
-using WebKit::WebDragOperation;
-using WebKit::WebDragOperationsMask;
-using WebKit::WebDragOperationNone;
-using WebKit::WebDragOperationCopy;
-using WebKit::WebDragOperationLink;
-using WebKit::WebDragOperationMove;
-using WebKit::WebDragOperationGeneric;
-
-namespace web_drag_utils_win {
-
-WebDragOperation WinDragOpToWebDragOp(DWORD effect) {
-  DCHECK(effect == DROPEFFECT_NONE || effect == DROPEFFECT_COPY ||
-         effect == DROPEFFECT_LINK || effect == DROPEFFECT_MOVE);
-
-  return WinDragOpMaskToWebDragOpMask(effect);
-}
-
-WebDragOperationsMask WinDragOpMaskToWebDragOpMask(DWORD effects) {
-  WebDragOperationsMask ops = WebDragOperationNone;
-  if (effects & DROPEFFECT_COPY)
-    ops = static_cast<WebDragOperationsMask>(ops | WebDragOperationCopy);
-  if (effects & DROPEFFECT_LINK)
-    ops = static_cast<WebDragOperationsMask>(ops | WebDragOperationLink);
-  if (effects & DROPEFFECT_MOVE)
-    ops = static_cast<WebDragOperationsMask>(ops | WebDragOperationMove |
-                                             WebDragOperationGeneric);
-  return ops;
-}
-
-DWORD WebDragOpToWinDragOp(WebDragOperation op) {
-  DCHECK(op == WebDragOperationNone ||
-         op == WebDragOperationCopy ||
-         op == WebDragOperationLink ||
-         op == WebDragOperationMove ||
-         op == (WebDragOperationMove | WebDragOperationGeneric));
-
-  return WebDragOpMaskToWinDragOpMask(op);
-}
-
-DWORD WebDragOpMaskToWinDragOpMask(WebDragOperationsMask ops) {
-  DWORD win_ops = DROPEFFECT_NONE;
-  if (ops & WebDragOperationCopy)
-    win_ops |= DROPEFFECT_COPY;
-  if (ops & WebDragOperationLink)
-    win_ops |= DROPEFFECT_LINK;
-  if (ops & (WebDragOperationMove | WebDragOperationGeneric))
-    win_ops |= DROPEFFECT_MOVE;
-  return win_ops;
-}
-
-}  // namespace web_drag_utils_win
-