Don't allow creating a profile with an empty name in chrome://settings

chrome/browser/resources/options/manage_profile_overlay.html

 <div id="manage-profile-overlay" class="page" hidden>
   <div class="close-button"></div>
   <!-- Dialog for managing profiles. -->
   <div id="manage-profile-overlay-manage" hidden>
     <h1 i18n-content="manageProfile"></h1>
     <div id="manage-profile-content" class="content-area">
       <div id="manage-profile-icon-label"
           i18n-content="manageProfilesIconLabel">
       </div>
       <grid id="manage-profile-icon-grid"></grid>
@@ skipping 68 matching lines @@
   <div id="manage-profile-overlay-create" hidden>
     <h1 i18n-content="createProfileTitle"></h1>
     <div id="create-profile-content" class="content-area">
       <div id="create-profile-instructions"></div>
       <grid id="create-profile-icon-grid"></grid>
       <div id="create-profile-name-input-container">
         <label>
           <span id="create-profile-name-label" for="create-profile-name"
               i18n-content="manageProfilesNameLabel">
           </span>
-          <input id="create-profile-name" type="text" required>
+          <input id="create-profile-name" type="text" pattern=".*\S.*" required>
         </label>
       </div>
     </div>
     <div id="create-profile-supervised-content-area" class="content-area">
       <div id="create-shortcut-container" class="checkbox" hidden>
         <label>
           <input id="create-shortcut" type="checkbox">
           <span for="create-shortcut"
               i18n-content="createProfileShortcutCheckbox">
           </span>
@@ skipping 33 matching lines @@
       </button>
       <div class="button-strip">
         <button id="create-profile-cancel" i18n-content="cancel"></button>
         <button id="create-profile-ok" i18n-content="createProfileConfirm"
             class="default-button">
         </button>
       </div>
     </div>
   </div>
 </div>