Cleanup: Misc fixes to MediaDeviceNotifications.

chrome/browser/media_gallery/media_device_notifications_linux_unittest.cc

 // Copyright (c) 2012 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.
 
 // MediaDeviceNotificationsLinux unit tests.
 
 #include "chrome/browser/media_gallery/media_device_notifications_linux.h"
 
 #include <mntent.h>
 #include <stdio.h>
@@ skipping 324 matching lines @@
   OverwriteMtabAndRunLoop(test_data1, arraysize(test_data1));
 
   // Detach all devices.
   EXPECT_CALL(observer(), OnMediaDeviceAttached(_, _, _)).Times(0);
   EXPECT_CALL(observer(), OnMediaDeviceDetached(_)).Times(2);
   WriteEmptyMtabAndRunLoop();
 }
 
 // More complicated test case with multiple devices on one mount point.
 TEST_F(MediaDeviceNotificationsLinuxTest, MultiDevicesOneMountPoint) {
-  testing::Sequence mock_sequence;
   FilePath test_path_a = CreateMountPointWithDCIMDir(kMountPointA);
   FilePath test_path_b = CreateMountPointWithDCIMDir(kMountPointB);
   ASSERT_FALSE(test_path_a.empty());
   ASSERT_FALSE(test_path_b.empty());
 
   // |kDevice1| is most recently mounted at |kMountPointB|.
   // kDevice1 -> kMountPointA
   // kDevice2 -> kMountPointB
   // kDevice1 -> kMountPointB
   MtabTestData test_data1[] = {
@@ skipping 24 matching lines @@
 
   // Detach all devices.
   EXPECT_CALL(observer(), OnMediaDeviceAttached(_, _, _)).Times(0);
   EXPECT_CALL(observer(), OnMediaDeviceDetached(1)).Times(1);
   WriteEmptyMtabAndRunLoop();
 }
 
 }  // namespace
 
 }  // namespace chrome