Use a direct include of strings headers in chrome/browser/media_galleries/.

chrome/browser/media_galleries/win/mtp_device_object_enumerator_unittest.cc

 // Copyright (c) 2013 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.
 //
 // MTPDeviceObjectEnumerator unit tests.
 
 #include "chrome/browser/media_galleries/win/mtp_device_object_enumerator.h"
 
 #include <ctime>
 
 #include "base/basictypes.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/time.h"
 #include "chrome/browser/media_galleries/win/mtp_device_object_entry.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chrome {
 namespace {
 
 struct MTPDeviceObjectEntryData {
   // Friendly name of the object, e.g. "IMG_9911.jpeg".
   string16 name;
@@ skipping 62 matching lines @@
   }
   TestNextEntryIsEmpty(&enumerator);
   TestNextEntryIsEmpty(&enumerator);
   TestEnumeratorIsEmpty(&enumerator);
   TestNextEntryIsEmpty(&enumerator);
   TestEnumeratorIsEmpty(&enumerator);
 }
 
 }  // namespace
 }  // namespace chrome