Clean up the file dev interfaces. The combination of some dev and some non

ppapi/cpp/dev/file_system_dev.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/dev/file_system_dev.h"
-
-#include "ppapi/c/dev/ppb_file_system_dev.h"
-#include "ppapi/c/pp_errors.h"
-#include "ppapi/cpp/completion_callback.h"
-#include "ppapi/cpp/dev/file_ref_dev.h"
-#include "ppapi/cpp/module.h"
-#include "ppapi/cpp/module_impl.h"
-
-namespace pp {
-
-namespace {
-
-template <> const char* interface_name<PPB_FileSystem_Dev>() {
-  return PPB_FILESYSTEM_DEV_INTERFACE;
-}
-
-}  // namespace
-
-FileSystem_Dev::FileSystem_Dev(Instance* instance,
-                               PP_FileSystemType_Dev type) {
-  if (!has_interface<PPB_FileSystem_Dev>())
-    return;
-  PassRefFromConstructor(get_interface<PPB_FileSystem_Dev>()->Create(
-      instance->pp_instance(), type));
-}
-
-int32_t FileSystem_Dev::Open(int64_t expected_size,
-                             const CompletionCallback& cc) {
-  if (!has_interface<PPB_FileSystem_Dev>())
-    return cc.MayForce(PP_ERROR_NOINTERFACE);
-  return get_interface<PPB_FileSystem_Dev>()->Open(
-      pp_resource(), expected_size, cc.pp_completion_callback());
-}
-
-}  // namespace pp