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diff --git a/chromium/content/browser/web_contents/web_drag_dest_win.h b/chromium/content/browser/web_contents/web_drag_dest_win.h
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+++ b/chromium/content/browser/web_contents/web_drag_dest_win.h
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+// Copyright (c) 2012 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 CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_DEST_WIN_H_
+#define CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_DEST_WIN_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
+#include "content/public/common/drop_data.h"
+#include "third_party/WebKit/public/web/WebDragOperation.h"
+#include "ui/base/dragdrop/drop_target_win.h"
+
+namespace content {
+class InterstitialDropTarget;
+class RenderViewHost;
+class WebContents;
+class WebDragDestDelegate;
+
+// A helper object that provides drop capabilities to a WebContentsImpl. The
+// DropTarget handles drags that enter the region of the WebContents by
+// passing on the events to the renderer.
+class CONTENT_EXPORT WebDragDest : public ui::DropTargetWin {
+ public:
+  // Create a new WebDragDest associating it with the given HWND and
+  // WebContents.
+  WebDragDest(HWND source_hwnd, WebContents* contents);
+  virtual ~WebDragDest();
+
+  DropData* current_drop_data() const { return drop_data_.get(); }
+
+  void set_drag_cursor(WebKit::WebDragOperation op) {
+    drag_cursor_ = op;
+  }
+
+  WebDragDestDelegate* delegate() const { return delegate_; }
+  void set_delegate(WebDragDestDelegate* d) { delegate_ = d; }
+
+ protected:
+  virtual DWORD OnDragEnter(IDataObject* data_object,
+                            DWORD key_state,
+                            POINT cursor_position,
+                            DWORD effect);
+
+  virtual DWORD OnDragOver(IDataObject* data_object,
+                           DWORD key_state,
+                           POINT cursor_position,
+                           DWORD effect);
+
+  virtual void OnDragLeave(IDataObject* data_object);
+
+  virtual DWORD OnDrop(IDataObject* data_object,
+                       DWORD key_state,
+                       POINT cursor_position,
+                       DWORD effect);
+
+ private:
+  // Our associated WebContents.
+  WebContents* web_contents_;
+
+  // We keep track of the render view host we're dragging over.  If it changes
+  // during a drag, we need to re-send the DragEnter message.  WARNING:
+  // this pointer should never be dereferenced.  We only use it for comparing
+  // pointers.
+  RenderViewHost* current_rvh_;
+
+  // Used to determine what cursor we should display when dragging over web
+  // content area.  This can be updated async during a drag operation.
+  WebKit::WebDragOperation drag_cursor_;
+
+  // A special drop target handler for when we try to d&d while an interstitial
+  // page is showing.
+  scoped_ptr<InterstitialDropTarget> interstitial_drop_target_;
+
+  // A delegate that can receive drag information about drag events.
+  WebDragDestDelegate* delegate_;
+
+  // The data for the current drag, or NULL if |context_| is NULL.
+  scoped_ptr<DropData> drop_data_;
+
+  // True if the drag has been canceled.
+  bool canceled_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebDragDest);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_DEST_WIN_H_