MD Settings: Remove subpage animation when landing directly on it.

chrome/browser/resources/settings/settings_ui/settings_ui.js

 // Copyright 2015 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.
 
 /**
  * @fileoverview
  * 'settings-ui' implements the UI for the Settings page.
  *
  * Example:
  *
@@ skipping 140 matching lines @@
         },
         downloads: {
           googleDrive: false,
         },
 // </if>
       };
     }
 
     this.showAndroidApps_ = loadTimeData.valueExists('androidAppsAllowed') &&
         loadTimeData.getBoolean('androidAppsAllowed');
+
+    this.addEventListener('show-container', function() {
+      this.$.container.style.visibility = 'visible';
+    }.bind(this));
+
+    this.addEventListener('hide-container', function() {
+      this.$.container.style.visibility = 'hidden';
+    }.bind(this));
   },
 
   /** @private {?IntersectionObserver} */
   intersectionObserver_: null,
 
   /** @override */
   attached: function() {
     document.documentElement.classList.remove('loading');
 
     setTimeout(function() {
@@ skipping 107 matching lines @@
       this.$.container.removeAttribute('tabindex');
     }.bind(this));
   },
 
   /** @private */
   directionDelegateChanged_: function() {
     this.$.drawer.align = this.directionDelegate.isRtl() ?
         'right' : 'left';
   },
 });