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

content/public/common/context_menu_source_type.h

Index: content/public/common/context_menu_source_type.h
diff --git a/content/public/common/context_menu_source_type.h b/content/public/common/context_menu_source_type.h
new file mode 100644
index 0000000000000000000000000000000000000000..c030c9ded4ec84281d6ebe6e11b2b7b61c080b1a
--- /dev/null
+++ b/content/public/common/context_menu_source_type.h
@@ -0,0 +1,18 @@
+// 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_PUBLIC_COMMON_CONTEXT_MENU_SOURCE_TYPE_H_
+#define CONTENT_PUBLIC_COMMON_CONTEXT_MENU_SOURCE_TYPE_H_
+
+namespace content {
+
+enum ContextMenuSourceType {
+  CONTEXT_MENU_SOURCE_MOUSE,
+  CONTEXT_MENU_SOURCE_KEYBOARD,
+  CONTEXT_MENU_SOURCE_GESTURE,

[sky, 2012/09/06 16:35:03]

You sure you don't want _TOUCH? At a minimum document its from a touch device.

[varunjain, 2012/09/06 16:43:45]

there is no way to invoke context menu from a touch event. The long press event
(or two finger tap) is a gesture event that invokes the context menu. Added
comment as you suggested.

[sky, 2012/09/06 17:04:19]

The reason I don't like GESTURE is there are other types of gestures and in
particular mouse gestures. But this is only used from touch.

[varunjain, 2012/09/06 17:11:42]

changed to TOUCH

+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_COMMON_CONTEXT_MENU_SOURCE_TYPE_H_