Fix the alignment on chrome://settings/passwords

chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html

 <link rel="import" href="chrome://resources/cr_elements/cr_action_menu/cr_action_menu.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/assert.html">
 <link rel="import" href="chrome://resources/html/cr/ui/focus_without_ink.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-list/iron-list.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="../controls/settings_toggle_button.html">
 <link rel="import" href="../controls/extension_controlled_indicator.html">
@@ skipping 44 matching lines @@
     <div class="list-frame">
       <div id="savedPasswordsHeading" class="list-item column-header"
           hidden$="[[!hasSome_(savedPasswords)]]">
         <div class="website-column">$i18n{editPasswordWebsiteLabel}</div>
         <div class="username-column">
           $i18n{editPasswordUsernameLabel}
         </div>
         <div class="password-column">
           $i18n{editPasswordPasswordLabel}
         </div>
+        <paper-icon-button class="invisible">

[hcarmona, 2017/05/09 19:23:28]

Let's not add a hidden paper-icon-button just to align.
paper-icon-button is expensive and we're replacing them in a different CL.

[vasilii, 2017/05/19 13:20:14]

Done.

+        </paper-icon-button>
       </div>
       <iron-list id="passwordList"
           items="[[getFilteredPasswords_(savedPasswords, filter)]]"
           class="vertical-list list-with-header"
           scroll-target="[[subpageScrollTarget]]">
         <template>
           <password-list-item item="[[item]]" tabindex$="[[tabIndex]]"
               iron-list-tab-index="[[tabIndex]]"
               last-focused="{{lastFocused_}}">
           <password-list-item>
@@ skipping 34 matching lines @@
         </div>
       </template>
       <div id="noExceptionsLabel" class="list-item"
           hidden$="[[hasSome_(passwordExceptions)]]">
         $i18n{noExceptionsFound}
       </div>
     </div>
   </template>
   <script src="passwords_section.js"></script>
 </dom-module>