import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

layout/tools/layout-debug/ui/content/layoutdebug-overlay.xul

@@ -0,0 +1,38 @@
+<?xml version="1.0"?>
+
+<!--
+   -
+   - This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+<!--
+  This file contains the nodes that will be overlayed on top of
+  <chrome://communicator/content/tasksOverlay.xul>.
+  Declare XML entites that this file refers to in layoutdebug-overlay.dtd.
+ -->
+
+<!DOCTYPE window SYSTEM "chrome://layoutdebug/locale/layoutdebug-overlay.dtd" >
+
+<overlay id="layoutdebugTaskMenuID"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+<!-- SeaMonkey -->
+<menupopup id="taskPopup">
+  <menuitem label="&ldbCmd.label;"
+            accesskey="&ldbCmd.accesskey;"
+            oncommand="toOpenWindowByType('mozapp:layoutdebug',
+                                          'chrome://layoutdebug/content/');"/>
+</menupopup>
+
+<!-- Firefox -->
+<menupopup id="menu_ToolsPopup">
+  <menuitem label="&ldbCmd.label;"
+            accesskey="&ldbCmd.accesskey;"
+            insertafter="javascriptConsole"
+            oncommand="toOpenWindowByType('mozapp:layoutdebug',
+                                          'chrome://layoutdebug/content/');"/>
+</menupopup>
+
+</overlay>