MD Settings: polish top-level bluetooth page

chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js

Index: chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js
diff --git a/chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js b/chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js
index 41ba307bde90b37e189e6bc0065722102514e0f7..405d29b9cd0f386f6a675481e6f7805c0a3d2699 100644
--- a/chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js
+++ b/chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js
@@ -197,6 +197,16 @@ Polymer({
   },
 
   /**
+   * @param {boolean} bluetoothEnabled
+   * @param {boolean} deviceListExpanded
+   * @return {boolean} Whether the <iron-collapse> can be shown.
+   * @private
+   */
+  canShowDeviceList_: function(bluetoothEnabled, deviceListExpanded) {
+    return bluetoothEnabled && deviceListExpanded;
+  },
+
+  /**
    * If bluetooth is enabled, request the complete list of devices and update
    * |deviceList|.
    * @private