Update iron-overlay-behavior to version 1.10.2.

third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/compiled_resources2.gyp

Index: third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/compiled_resources2.gyp
diff --git a/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/compiled_resources2.gyp b/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/compiled_resources2.gyp
index 3123242cf599de9c0859c66c0c4a09f09d46593b..bac22415655cccd957ed33a720f5966f36822af7 100644
--- a/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/compiled_resources2.gyp
+++ b/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/compiled_resources2.gyp
@@ -1,4 +1,4 @@
-# Copyright 2016 The Chromium Authors. All rights reserved.
+# Copyright 2017 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.
 #
@@ -6,6 +6,10 @@
 {
   'targets': [
     {
+      'target_name': 'iron-focusables-helper-extracted',
+      'includes': ['../../../../closure_compiler/compile_js2.gypi'],
+    },
+    {
       'target_name': 'iron-overlay-backdrop-extracted',
       'includes': ['../../../../closure_compiler/compile_js2.gypi'],
     },
@@ -14,6 +18,7 @@
       'dependencies': [
         '../iron-fit-behavior/compiled_resources2.gyp:iron-fit-behavior-extracted',
         '../iron-resizable-behavior/compiled_resources2.gyp:iron-resizable-behavior-extracted',
+        'iron-focusables-helper-extracted',
         'iron-overlay-manager-extracted',
       ],
       'includes': ['../../../../closure_compiler/compile_js2.gypi'],