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

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 876eb8451369a2951e829d64ba0d3ea91a36be30..d0d510042d274fc0bbc8cfaa886439be1241da9f 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -406,7 +406,8 @@ class CONTENT_EXPORT WebContentsImpl
                                  const gfx::Rect& initial_pos) OVERRIDE;
   virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE;
   virtual void ShowContextMenu(
-      const content::ContextMenuParams& params) OVERRIDE;
+      const content::ContextMenuParams& params,
+      const content::ContextMenuSourceType& type) OVERRIDE;
   virtual void RequestMediaAccessPermission(
       const content::MediaStreamRequest* request,
       const content::MediaResponseCallback& callback) OVERRIDE;