MD Settings: Manage a11y page, clear search param when navigating.

chrome/browser/resources/settings/a11y_page/manage_a11y_page.js

 // Copyright 2016 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-manage-a11y-page' is the subpage with the accessibility
  * settings.
  */
 Polymer({
@@ skipping 42 matching lines @@
     },
   },
 
   /** @private */
   onChromeVoxSettingsTap_: function() {
     chrome.send('showChromeVoxSettings');
   },
 
   /** @private */
   onDisplayTap_: function() {
-    settings.navigateTo(settings.Route.DISPLAY);
+    settings.navigateTo(
+        settings.Route.DISPLAY,
+        /* dynamicParams */ null, /* removeSearch */ true);
   },
 
   /** @private */
   onAppearanceTap_: function() {
-    settings.navigateTo(settings.Route.APPEARANCE);
+    settings.navigateTo(
+        settings.Route.APPEARANCE,
+        /* dynamicParams */ null, /* removeSearch */ true);
   },
 
   /** @private */
   onKeyboardTap_: function() {
-    settings.navigateTo(settings.Route.KEYBOARD);
+    settings.navigateTo(
+        settings.Route.KEYBOARD,
+        /* dynamicParams */ null, /* removeSearch */ true);
   },
 
   /** @private */
   onMouseTap_: function() {
-    settings.navigateTo(settings.Route.POINTERS);
+    settings.navigateTo(
+        settings.Route.POINTERS,
+        /* dynamicParams */ null, /* removeSearch */ true);
   },
 
   /** @private */
   onMoreFeaturesTap_: function() {
     window.open(
         'https://chrome.google.com/webstore/category/collection/accessibility');
   },
 });