MD WebUI: Fix appearance of toolbar title in certain languages

chrome/browser/resources/md_downloads/toolbar.html

 <link rel="import" href="chrome://downloads/action_service.html">
 <link rel="import" href="chrome://resources/html/assert.html">
 <link rel="import" href="chrome://resources/html/cr.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/util.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-item/paper-item.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-menu/paper-menu.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-menu-button/paper-menu-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_toolbar/cr_toolbar.html">
@@ skipping 15 matching lines @@
       }
 
       #toolbar {
         --cr-toolbar-field-end-padding: 0;
         --cr-toolbar-field-width: var(--downloads-card-width);
         --cr-toolbar-header-wide: {
           -webkit-margin-start: 24px;
           -webkit-margin-end: 16px;  /* Only matters around 900px in Russian. */
         };
         --cr-toolbar-left-content-wide: {
-          -webkit-margin-start: 0;
+          -webkit-padding-start: 0;
           flex: 1 0 1px;
           max-width: none;
           position: static;
         };
         --cr-toolbar-right-content-wide: {
           flex: 1 0 1px;
           position: static;
         };
         align-items: center;
         flex: 1;
@@ skipping 54 matching lines @@
                 on-blur="onItemBlur_">
               $i18n{openDownloadsFolder}
             </paper-item>
           </paper-menu>
         </paper-menu-button>
       </div>
     </cr-toolbar>
   </template>
   <script src="chrome://downloads/toolbar.js"></script>
 </dom-module>