Fix bluetooth adapter access in SystemTrayDelegateChromeOS.

chrome/browser/ui/ash/system_tray_delegate_chromeos_unittest.cc

+// Copyright 2016 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 "ash/test/ash_test_base.h"
+#include "base/macros.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/browser_process_platform_part_chromeos.h"
+#include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
+#include "chrome/browser/chromeos/input_method/input_method_configuration.h"
+#include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
+#include "chrome/browser/chromeos/settings/scoped_cros_settings_test_helper.h"
+#include "chromeos/login/login_state.h"
+#include "components/user_manager/fake_user_manager.h"
+#include "media/audio/audio_manager.h"
+#include "media/audio/sounds/sounds_manager.h"
+
+namespace chromeos {
+
+class SystemTrayDelegateChromeOSTest : public ash::test::AshTestBase {
+ public:
+  SystemTrayDelegateChromeOSTest()
+      : user_manager_enabler_(new user_manager::FakeUserManager) {}
+  ~SystemTrayDelegateChromeOSTest() override {
+    // The system clock must be destroyed before |settings_helper_|.
+    g_browser_process->platform_part()->DestroySystemClock();
+  }
+
+  void SetUp() override {
+    input_method::Initialize();
+    ash::test::AshTestBase::SetUp();
+    audio_manager_ = media::AudioManager::CreateForTesting(
+        base::ThreadTaskRunnerHandle::Get());
+    media::SoundsManager::Create();
+    LoginState::Initialize();
+    AccessibilityManager::Initialize();
+  }
+
+  void TearDown() override {
+    AccessibilityManager::Shutdown();
+    LoginState::Shutdown();
+    media::SoundsManager::Shutdown();
+    ash::test::AshTestBase::TearDown();
+    input_method::Shutdown();
+  }
+
+ private:
+  media::ScopedAudioManagerPtr audio_manager_;
+  ScopedUserManagerEnabler user_manager_enabler_;
+  ScopedCrosSettingsTestHelper settings_helper_;
+
+  DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegateChromeOSTest);
+};
+
+// Test that checking bluetooth status early on does not cause a crash.
+TEST_F(SystemTrayDelegateChromeOSTest, BluetoothStatus) {
+  SystemTrayDelegateChromeOS delegate;
+  EXPECT_FALSE(delegate.GetBluetoothAvailable());
+  EXPECT_FALSE(delegate.GetBluetoothEnabled());
+  EXPECT_FALSE(delegate.IsBluetoothDiscovering());
+}
+
+}  // namespace chromeos