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

content/browser/web_contents/web_contents_view_aura.h

Index: content/browser/web_contents/web_contents_view_aura.h
diff --git a/content/browser/web_contents/web_contents_view_aura.h b/content/browser/web_contents/web_contents_view_aura.h
index 39b66cdc78598b25e61360a1193a6c35af6b6468..1b8709843a2761c5ae9c01ef24f601e2ee72c0c7 100644
--- a/content/browser/web_contents/web_contents_view_aura.h
+++ b/content/browser/web_contents/web_contents_view_aura.h
@@ -72,7 +72,8 @@ class CONTENT_EXPORT WebContentsViewAura
 
   // Overridden from RenderViewHostDelegateView:
   virtual void ShowContextMenu(
-      const content::ContextMenuParams& params) OVERRIDE;
+      const content::ContextMenuParams& params,
+      const content::ContextMenuSourceType& type) OVERRIDE;
   virtual void ShowPopupMenu(const gfx::Rect& bounds,
                              int item_height,
                              double item_font_size,