Add DEPS include rules so we don't accidentally use base

ppapi/cpp/file_io.cc

 // 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.
 
 #include "ppapi/cpp/file_io.h"
 
 #include "ppapi/c/ppb_file_io.h"
 #include "ppapi/c/pp_errors.h"
-#include "ppapi/c/trusted/ppb_file_io_trusted.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/file_ref.h"
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/module.h"
 #include "ppapi/cpp/module_impl.h"
 
 namespace pp {
 
 namespace {
 
@@ skipping 81 matching lines @@
       pp_resource(), cc.pp_completion_callback());
 }
 
 void FileIO::Close() {
   if (!has_interface<PPB_FileIO>())
     return;
   get_interface<PPB_FileIO>()->Close(pp_resource());
 }
 
 }  // namespace pp