Fix bluetooth adapter access in SystemTrayDelegateChromeOS.

chrome/browser/ui/ash/system_tray_delegate_chromeos_browsertest_chromeos.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/system_tray_delegate_chromeos.h"
 
 #include <string>
 
 #include "ash/common/system/date/date_default_view.h"
 #include "ash/common/system/date/date_view.h"
@@ skipping 107 matching lines @@
   content::RunAllPendingInMessageLoop();
   AddUser(account_id2_.GetUserEmail());
   SetupUserProfile(account_id2_, false /* Use_24_hour_clock. */);
   CreateDefaultView();
   EXPECT_EQ(base::k12HourClock, GetHourType());
   user_manager::UserManager::Get()->SwitchActiveUser(account_id1_);
   CreateDefaultView();
   EXPECT_EQ(base::k24HourClock, GetHourType());
 }
 
+// Test that checking bluetooth status early on doesn't cause a crash.
+IN_PROC_BROWSER_TEST_F(SystemTrayDelegateChromeOSTest, BluetoothStatus) {

[James Cook, 2016/07/20 15:23:14]

drive-by question: Any particular reason you added the same test as both a
browser test and unit test?

[msw, 2016/07/20 16:43:19]

Woops, I meant to delete this; thanks for catching that!

+  SystemTrayDelegateChromeOS delegate;
+  EXPECT_FALSE(delegate.GetBluetoothAvailable());
+  EXPECT_FALSE(delegate.GetBluetoothEnabled());
+  EXPECT_FALSE(delegate.IsBluetoothDiscovering());
+}
+
 // Makes sure that no notifications are shown when rotating the
 // display on display settings URLs.
 IN_PROC_BROWSER_TEST_F(DisplayNotificationsTest,
                        TestDisplayOrientationChangeNotification) {
   // Open the display settings page.
   ui_test_utils::NavigateToURL(browser(),
                                GURL("chrome://settings-frame/display"));
   // Rotate the display 90 degrees.
   UpdateDisplay("400x400/r");
   // Ensure that no notification was displayed.
@@ skipping 15 matching lines @@
 
   UpdateDisplay("400x400");
 
   ui_test_utils::NavigateToURL(browser(), GURL("chrome://version"));
   UpdateDisplay("400x400/r");
   // Ensure that there is a notification that is shown.
   EXPECT_FALSE(GetVisibleNotifications().empty());
 }
 
 }  // namespace chromeos