Context menus should appear above the touch point if invoked by long press.

chrome/browser/ui/views/tab_contents/render_view_context_menu_views.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 CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_VIEWS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/string16.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
+#include "content/public/common/context_menu_source_type.h"
 
 namespace gfx {
 class Point;
 }
 
 namespace views {
 class MenuItemView;
 class MenuModelAdapter;
 class MenuRunner;
 class Widget;
 }
 
 class RenderViewContextMenuViews : public RenderViewContextMenu {
  public:
   virtual ~RenderViewContextMenuViews();
 
   // Factory function to create an instance.
   static RenderViewContextMenuViews* Create(
       content::WebContents* tab_contents,
       const content::ContextMenuParams& params);
 
-  void RunMenuAt(views::Widget* parent, const gfx::Point& point);
+  void RunMenuAt(views::Widget* parent,
+                 const gfx::Point& point,
+                 const content::ContextMenuSourceType& type);
 
   void UpdateMenuItemStates();
 
   // RenderViewContextMenuDelegate implementation.
   virtual void UpdateMenuItem(int command_id,
                               bool enabled,
                               bool hidden,
                               const string16& title) OVERRIDE;
 
  protected:
   RenderViewContextMenuViews(content::WebContents* tab_contents,
                              const content::ContextMenuParams& params);
   // RenderViewContextMenu implementation.
   virtual void PlatformInit() OVERRIDE;
   virtual void PlatformCancel() OVERRIDE;
   virtual bool GetAcceleratorForCommandId(
       int command_id,
       ui::Accelerator* accelerator) OVERRIDE;
 
  private:
   // The context menu itself and its contents.
   scoped_ptr<views::MenuModelAdapter> menu_delegate_;
   views::MenuItemView* menu_;  // Owned by menu_runner_.
   scoped_ptr<views::MenuRunner> menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewContextMenuViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_VIEWS_H_