Fixed unexpected scroll when removing profiles in settings.

chrome/browser/resources/options/options_page.js

 // Copyright (c) 2012 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.
 
 cr.define('options', function() {
   /////////////////////////////////////////////////////////////////////////////
   // OptionsPage class:
 
   /**
    * Base class for options page.
@@ skipping 741 matching lines @@
     /**
      * Initializes page content.
      */
     initializePage: function() {},
 
     /**
      * Sets focus on the first focusable element. Override for a custom focus
      * strategy.
      */
     focus: function() {
+      // Do not change focus if any control on this page is already focused.
+      if (this.pageDiv.contains(document.activeElement))
+        return;
+
       var elements = this.pageDiv.querySelectorAll(
           'input, list, select, textarea, button');
       for (var i = 0; i < elements.length; i++) {
         var element = elements[i];
         // Try to focus. If fails, then continue.
         element.focus();
         if (document.activeElement == element)
           return;
       }
     },
@@ skipping 179 matching lines @@
     canShowPage: function() {
       return true;
     },
   };
 
   // Export
   return {
     OptionsPage: OptionsPage
   };
 });