Use a direct include of strings headers in content/browser/, part 1.

content/browser/indexed_db/indexed_db_database_unittest.cc

 // Copyright 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.
 
 #include "content/browser/indexed_db/indexed_db_database.h"
 
 #include <gtest/gtest.h>
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/in_process_webkit/indexed_db_database_callbacks.h"
 #include "content/browser/indexed_db/indexed_db.h"
 #include "content/browser/indexed_db/indexed_db_backing_store.h"
 #include "content/browser/indexed_db/indexed_db_callbacks_wrapper.h"
 #include "content/browser/indexed_db/indexed_db_cursor.h"
 #include "content/browser/indexed_db/indexed_db_database.h"
 #include "content/browser/indexed_db/indexed_db_factory.h"
 #include "content/browser/indexed_db/indexed_db_fake_backing_store.h"
 #include "content/browser/indexed_db/indexed_db_transaction.h"
@@ skipping 169 matching lines @@
   const std::vector<int64> scope;
   web_database.createTransaction(
       transaction_id, 0, scope, indexed_db::TRANSACTION_READ_ONLY);
 
   web_database.forceClose();
 
   EXPECT_TRUE(backing_store->HasOneRef());  // local
 }
 
 }  // namespace content