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.h

Index: chrome/browser/tab_contents/web_drag_utils_win.h
===================================================================
--- chrome/browser/tab_contents/web_drag_utils_win.h	(revision 124553)
+++ chrome/browser/tab_contents/web_drag_utils_win.h	(working copy)
@@ -1,24 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_UTILS_WIN_H_
-#define CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_UTILS_WIN_H_
-#pragma once
-
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
-
-#include <windows.h>
-
-namespace web_drag_utils_win {
-
-WebKit::WebDragOperation WinDragOpToWebDragOp(DWORD effect);
-WebKit::WebDragOperationsMask WinDragOpMaskToWebDragOpMask(DWORD effects);
-
-DWORD WebDragOpToWinDragOp(WebKit::WebDragOperation op);
-DWORD WebDragOpMaskToWinDragOpMask(WebKit::WebDragOperationsMask ops);
-
-}  // namespace web_drag_utils_win
-
-#endif  // CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_UTILS_WIN_H_
-