[MD settings] change single line row 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">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/default-theme.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.
    */
@@ skipping 19 matching lines @@
       padding-top: 0;
     }
 
     --settings-nav-grey: rgb(90, 90, 90);
 
     --settings-page-vertical-margin: 21px;
 
     /* TODO (scottchen): re-implement with paddings instead; */
     /* These are used for row items such as radio buttons, check boxes, list
      * items etc. */
-    --settings-row-min-height: 45px;
+    --settings-row-min-height: 48px;
     --settings-row-two-line-min-height: 64px;
 
     /* TODO (scottchen): re-implement with paddings instead; */
     /* These are used for the settings-box containers, which may contain one or
      * more "row items". */
-    --settings-box-min-height: 45px;
+    --settings-box-min-height: 48px;

[dpapad, 2017/06/27 01:19:32]

Nit: Does the following work?

--settings-box-min-height: var(--settings-row-min-height);

[dschuyler, 2017/06/27 21:47:04]

I'm going to look into combining lines 37 to 48 in a separate CL.

     --settings-box-two-line-min-height: 64px;
     --settings-box-three-line-min-height: 84px;
 
     --settings-text-elide: {
       overflow: hidden;
       text-overflow: ellipsis;
       white-space: nowrap;
     };
 
     --settings-secondary: {
@@ skipping 86 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>