Remove some code inside USE_AURA and OS_WIN ifdefs.

content/browser/web_contents/web_drag_source_win.h

-// 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_SOURCE_WIN_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_
-
-#include "base/basictypes.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "ui/base/dragdrop/drag_source_win.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/point.h"
-
-namespace ui {
-class OSExchangeData;
-}  // namespace ui
-
-namespace content {
-class RenderViewHost;
-class WebContents;
-class WebContentsImpl;
-
-// An IDropSource implementation for a WebContentsImpl. Handles notifications
-// sent by an active drag-drop operation as the user mouses over other drop
-// targets on their system. This object tells Windows whether or not the drag
-// should continue, and supplies the appropriate cursors.
-class WebDragSource : public ui::DragSourceWin,
-                      public NotificationObserver {
- public:
-  // Create a new DragSource for a given HWND and WebContents.
-  WebDragSource(gfx::NativeWindow source_wnd, WebContents* web_contents);
-  virtual ~WebDragSource();
-
-  // NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
-
-  void set_effect(DWORD effect) { effect_ = effect; }
-  // Used to set the active data object for the current drag operation. The
-  // caller must ensure that |data| is not destroyed before the nested drag loop
-  // terminates.
-  void set_data(ui::OSExchangeData* data) { data_ = data; }
-
- protected:
-  // ui::DragSourceWin
-  virtual void OnDragSourceCancel();
-  virtual void OnDragSourceDrop();
-  virtual void OnDragSourceMove();
-
- private:
-  // Cannot construct thusly.
-  WebDragSource();
-
-  // OnDragSourceDrop schedules its main work to be done after IDropTarget::Drop
-  // by posting a task to this function.
-  void DelayedOnDragSourceDrop();
-
-  // Keep a reference to the window so we can translate the cursor position.
-  gfx::NativeWindow source_wnd_;
-
-  // We use this as a channel to the renderer to tell it about various drag
-  // drop events that it needs to know about (such as when a drag operation it
-  // initiated terminates).
-  WebContentsImpl* web_contents_;
-
-  NotificationRegistrar registrar_;
-
-  DWORD effect_;
-
-  ui::OSExchangeData* data_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebDragSource);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_