MD Settings: add borders between toggle rows on basic/advanced pages

chrome/browser/resources/settings/system_page/system_page.html

Index: chrome/browser/resources/settings/system_page/system_page.html
diff --git a/chrome/browser/resources/settings/system_page/system_page.html b/chrome/browser/resources/settings/system_page/system_page.html
index db416e60a3991fdc130d50f1525c9d6dbdc2279e..b83d972139dbabdb6922025a408e1f2d53ebfa24 100644
--- a/chrome/browser/resources/settings/system_page/system_page.html
+++ b/chrome/browser/resources/settings/system_page/system_page.html
@@ -12,12 +12,14 @@
 <dom-module id="settings-system-page">
   <template>
     <style include="settings-shared"></style>
-    <div class="settings-box block first">
+    <div class="settings-box first">
 <if expr="not is_macosx">
-      <settings-toggle-button
+      <settings-toggle-button class="start"
           pref="{{prefs.background_mode.enabled}}"
           label="$i18n{backgroundAppsLabel}">
       </settings-toggle-button>
+    </div>
+    <div class="settings-box">
 </if>
       <settings-toggle-button class="flex" id="hardwareAcceleration"

[dschuyler, 2017/01/13 01:48:15]

Since this is now in its own settings-box, let's make this class="start". 

[Dan Beam, 2017/01/13 03:35:44]

Done.

           pref="{{prefs.hardware_acceleration_mode.enabled}}"