Bluetooth UI update.

chrome/browser/resources/options/chromeos/system_options_page.css

 .touchpad-sensitivity-more {
   float: right;
 }
 
 html[dir=rtl] .touchpad-sensitivity-more {
   float: left;
 }
 
 .option-name {
    display: inline;
 }
 
 #timezone-value {
    display: inline-block;
    vertical-align: baseline;
 }
 
 #touchpad-value,
 #slider-control {
    display: inline-block;
    vertical-align: top;
 }
 
 #bluetooth-options-div {
   -webkit-box-orient: vertical;
   display: -webkit-box;
 }
 
+#no-bluetooth-devices-label {
+  -webkit-margin-after: 5px;
+  -webkit-margin-before: 5px;
+  color: gray;
+}
+
 #bluetooth-finder-container,
 #bluetooth-scanning-status {
   -webkit-box-orient: horizontal;
   display: -webkit-box;
   vertical-align: baseline;
 }
 
 #bluetooth-scanning-label,
 #bluetooth-scanning-icon {
   -webkit-transition: 0.25s opacity;
@@ skipping 21 matching lines @@
 #bluetooth-device-list > * > * {
   border-bottom: 4px solid rgba(255,255,255,1);
   display: table-cell;
 }
 
 .bluetooth-item > * > button {
   visibility: hidden;
   width: 100%;
 }
 
+.bluetooth-item:first-child > * {
+  border-top: 4px solid rgba(255,255,255,1);
+}
+
 .bluetooth-item:hover > * > button,
 .bluetooth-item[connected] > * > button,
 .bluetooth-item[connecting] > * > button {
   visibility: visible;
 }
 
 .bluetooth-item[connected] {
   background-color: hsl(214, 91%, 89%);
   background-image: -webkit-linear-gradient(rgba(255, 255, 255, 0.8),
                                             rgba(255, 255, 255, 0));
   border-color: hsl(214, 91%, 65%);
 }
 
 .bluetooth-item[paired] {
-  background-color: hsl(214, 0%, 95%);
+  color: gray;
 }
 
 .bluetooth-item:hover,
 .bluetooth-item[connecting] {
   background-color: hsl(214, 91%, 97%);
   border-color: hsl(214, 91%, 65%);
 }
 
 .bluetooth-item-text {
   -webkit-padding-after: 3px;
   -webkit-padding-before: 3px;
   -webkit-padding-end: 5px;
+  -webkit-padding-start: 5px;
   width: 100%;
 }
 
-.bluetooth-item-text > * > .throbber {
+.bluetooth-item-text > * > .inline-spinner {
   -webkit-margin-start: 5px;
   -webkit-transform: translateY(3px);
 }
 
 .bluetooth-instructions {
   -webkit-margin-after: 5px;
   -webkit-margin-before: 5px;
   display: block;
   line-height: 120%;
 }
@@ skipping 36 matching lines @@
 .bluetooth-passkey-field {
   -webkit-margin-start: 10px;
   width: 100px;
 }
 
 .bluetooth-button-group {
   -webkit-padding-end: 5px;
   vertical-align: middle;
 }
 
-.bluetooth-icon {
-  background: center center no-repeat;
-  min-width: 45px;
-}
-
-.bluetooth-headset {
-  background-image: url("headset.png");
-}
-
-.bluetooth-input-keyboard {
-  background-image: url("keyboard.png");
-}
-
-.bluetooth-input-mouse {
-  background-image: url("mouse.png");
-}