[MD settings] updating polymer to 1.1.13

third_party/polymer/v1_0/components-chromium/paper-header-panel/paper-header-panel.css

 /**
 @license
 Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE
 The complete set of authors may be found at http://polymer.github.io/AUTHORS
 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS
 Code distributed by Google as part of the polymer project is also
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS
 */
 
 :host {
+  --paper-header-panel-shadow: {
+    height: 6px;
+    bottom: -6px;
+    box-shadow: inset 0px 5px 6px -3px rgba(0, 0, 0, 0.4);
+  };
+
   @apply(--layout-vertical);
 
   position: relative;
   height: 100%;
 }
 
-/**
- * Default paper header panel shadow
- */
-:root {
-  --paper-header-panel-shadow: {
-    height: 6px;
-    bottom: -6px;
-    box-shadow: inset 0px 5px 6px -3px rgba(0, 0, 0, 0.4);
-  };
-}
-
 #mainContainer {
   @apply(--layout-flex);
 
   position: relative;
   overflow-y: auto;
   overflow-x: hidden;
   -webkit-overflow-scrolling: touch;
 }
 
 #mainPanel {
@@ skipping 60 matching lines @@
 /*
  * mode: waterfall-tall
  */
 :host([mode=waterfall-tall]) #mainContainer {
   @apply(--paper-header-panel-waterfall-tall-container);
 }
 
 #dropShadow {
   @apply(--paper-header-panel-shadow);
 
-  -webkit-transition: opacity 0.5s, -webkit-transform 0.5s;
-  transition: opacity 0.5s, transform 0.5s;
-
-  -webkit-transform: scale3d(1, 0, 1);
-  transform: scale3d(1, 0, 1);
-
-  -webkit-transform-origin: left top;
-  transform-origin: left top;
-
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   height: 6px;
+  pointer-events: none;
+
+  -webkit-transition: opacity 0.5s;
+  transition: opacity 0.5s;
+
   opacity: 0;
 }
 
 #dropShadow.has-shadow {
   opacity: 1;
-
-  -webkit-transform: scale3d(1, 1, 1);
-  transform: scale3d(1, 1, 1);
 }