Use a direct include of strings headers in rlz/, sandbox/, skia/, sql/, sync/.

sandbox/win/src/sandbox_policy_base.h

 // Copyright (c) 2011 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.
 
 #ifndef SANDBOX_WIN_SRC_SANDBOX_POLICY_BASE_H_
 #define SANDBOX_WIN_SRC_SANDBOX_POLICY_BASE_H_
 
 #include <windows.h>
 
 #include <list>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "sandbox/win/src/crosscall_server.h"
 #include "sandbox/win/src/handle_closer.h"
 #include "sandbox/win/src/ipc_tags.h"
 #include "sandbox/win/src/policy_engine_opcodes.h"
 #include "sandbox/win/src/policy_engine_params.h"
 #include "sandbox/win/src/sandbox_policy.h"
 #include "sandbox/win/src/win_utils.h"
 
 namespace sandbox {
 
@@ skipping 125 matching lines @@
 
   static HDESK alternate_desktop_handle_;
   static HWINSTA alternate_winstation_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyBase);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_WIN_SRC_SANDBOX_POLICY_BASE_H_