MD Settings: polish top-level bluetooth page

chrome/browser/resources/settings/settings_shared_css.html

 <!-- Common styles for Material Design settings. -->
 <dom-module id="settings-shared">
   <template>
     <style>
       :root {
         --checkbox-margin-start: 2px;
         --checkbox-size: 16px;
         --checkbox-spacing: 18px;
         --iron-icon-fill-color: var(--paper-grey-600);
         --iron-icon-height: 20px;
+        --iron-icon-spacing: 16px;
         --iron-icon-width: 20px;
         --paper-icon-button: {
           width: 36px;
           height: 36px;
         };
         --paper-input-max-width: 264px;
+        --paper-item: {
+          font-size: inherit;

[Dan Beam, 2016/04/12 04:28:14]

probably fixes a lot of issues for us...

+        };
+
         --settings-background-color: var(--paper-blue-grey-50);
         --settings-secondary: {
           color: var(--paper-grey-600);
           font-weight: 400;
         };
         --settings-error-color: var(--paper-red-700);
         --settings-hover-color: var(--google-grey-300);
 
         /* Some colors use non-MD colors.  These custom colors are specified by
          * UX design (bettes@). */
         --settings-nav-grey: rgb(90, 90, 90);
+
+        --settings-row-min-height: 40px;
+
         --settings-title-bar-background-color: rgb(52, 73, 94);
         --settings-title-bar-color: rgb(255, 255, 255);
       }
 
       h2 {
         @apply(--layout-center);
         color: var(--paper-grey-500);
         display: flex;
         font-size: 100%;
         font-weight: 500;
         margin: 0;
-        min-height: 40px;
+        min-height: var(--settings-row-min-height);
       }
 
       iron-icon[icon=check],
       iron-icon[icon=done] {
        --iron-icon-fill-color: var(--google-green-500);
       }
 
       paper-button {
         margin: 0;
         min-width: auto;
@@ skipping 87 matching lines @@
       }
 
       .list-frame .secondary,
       .list-item .secondary {
         @apply(--settings-secondary);
       }
 
       .list-item {
         @apply(--layout-center);
         display: flex;
-        min-height: 40px;
+        min-height: var(--settings-row-min-height);
         padding: 0;
       }
 
       .list-item.underbar {
         border-bottom: 1px solid var(--paper-grey-300);
       }
 
       .list-item.selected {
         font-weight: 500;
       }
@@ skipping 23 matching lines @@
       .list-item.list-button {
         @apply(--layout-center);
         color: rgb(66, 133, 244);
         font-weight: 500;
       }
 
       .settings-box {
         @apply(--layout-center);
         border-top: 1px solid var(--paper-grey-300);
         display: flex;
-        min-height: 40px;
+        min-height: var(--settings-row-min-height);
         padding: 0 20px;
       }
 
       .settings-box.first {
         border-top: none;
       }
 
       .settings-box.block {
         display: block;
       }
@@ skipping 30 matching lines @@
       .settings-box .secondary-action {
         -webkit-border-start: 1px solid var(--paper-grey-300);
         -webkit-padding-start: 20px;
       }
 
       .settings-box paper-item iron-icon {
         /* Same padding as paper-icon-button. */
         padding: 8px;
       }
 
-      .vertical-list > div:first-of-type {

[Dan Beam, 2016/04/12 04:28:14]

div was too restrictive

-        border-top: none;
-      }
-
-      .vertical-list > div {
+      .vertical-list > *:not(:first-of-type) {
         border-top: 1px solid var(--paper-grey-300);
       }
 
       .settings-checkbox-spacer {
         -webkit-margin-start: calc(
             var(--checkbox-margin-start) +
             var(--checkbox-size) +
             var(--checkbox-spacing));
       }
     </style>
   </template>
 </dom-module>