MD Settings: fix paper-input label line-height

chrome/browser/resources/settings/settings_vars_css.html

 <link rel="import" href="chrome://resources/cr_elements/shared_vars_css.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/color.html">
 
 <!-- Common css variables for Material Design settings. -->
 <style is="custom-style">
   /* We keep our vars in sort order, though some vars must be defined prior to
    * others. The --settings-* vars are defined explicitly prior to the --paper-*
    * and --iron-* vars.
    */
   :root {
@@ skipping 94 matching lines @@
       line-height: 154%;
       vertical-align: baseline;
     };
     --paper-input-container-label: {
       font-size: inherit;
       line-height: 154%;
     };
     --paper-input-container-label-floating: {
       /* Using "rem" to make it easier to equalize with other labels. */
       font-size: 1rem;
-      line-height: 1.25rem;
+      line-height: 1.65rem;
     };
     --paper-input-error: {
       font-size: 92.31%; /* Should be 12px when 100% is 13px. */
       line-height: 154%;
       overflow: visible; /* Half-visible error message is not useful at all. */
     };
     --paper-input-max-width: 264px;
     --paper-radio-button-ink-size: 40px;
     --paper-radio-button-label-color: inherit;
     --paper-radio-button-size: 16px;
@@ skipping 11 matching lines @@
     --paper-toggle-button-unchecked-button: var(--settings-toggle-button-size);
     --paper-toggle-button-unchecked-ink: var(--settings-toggle-ink-size);
 
     --settings-input-underline: {
       border-color: var(--paper-grey-300);
     };
 
     --paper-input-container-underline: var(--settings-input-underline);
   }
 </style>