We do not pass enums by conts references. This CL fixes style errors introduced

content/browser/web_contents/web_contents_view_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_CONTENTS_VIEW_WIN_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_WIN_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
@@ skipping 63 matching lines @@
   virtual bool IsDoingDrag() const OVERRIDE;
   virtual void CancelDragAndCloseTab() OVERRIDE;
   virtual WebDropData* GetDropData() const OVERRIDE;
   virtual bool IsEventTracking() const OVERRIDE;
   virtual void CloseTabAfterEventTracking() OVERRIDE;
   virtual gfx::Rect GetViewBounds() const OVERRIDE;
 
   // Implementation of RenderViewHostDelegateView.
   virtual void ShowContextMenu(
       const content::ContextMenuParams& params,
-      const content::ContextMenuSourceType& type) OVERRIDE;
+      content::ContextMenuSourceType type) OVERRIDE;
   virtual void ShowPopupMenu(const gfx::Rect& bounds,
                              int item_height,
                              double item_font_size,
                              int selected_item,
                              const std::vector<WebMenuItem>& items,
                              bool right_aligned,
                              bool allow_multiple_selection) OVERRIDE;
   virtual void StartDragging(const WebDropData& drop_data,
                              WebKit::WebDragOperationsMask operations,
                              const gfx::ImageSkia& image,
@@ skipping 51 matching lines @@
 
   // Used to close the tab after the stack has unwound.
   base::OneShotTimer<WebContentsViewWin> close_tab_timer_;
 
   scoped_ptr<ui::HWNDMessageFilter> hwnd_message_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewWin);
 };
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_WIN_H_