Remove browser support for non-PPAPI nexes

ppapi/native_client/src/trusted/plugin/desc_based_handle.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.
- */
-
-// OBSOLETE -- this class provides support for passing NaClDescs between
-// plugin instances.  This support only exists in SRPC-mode plugins.
-// TODO(polina): remove when SRPC descriptor passing is removed.
-
-#ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_DESC_BASED_HANDLE_H_
-#define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_DESC_BASED_HANDLE_H_
-
-#include <stdio.h>
-#include <map>
-
-#include "native_client/src/include/nacl_macros.h"
-#include "native_client/src/include/nacl_scoped_ptr.h"
-#include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
-#include "native_client/src/trusted/plugin/utility.h"
-
-struct NaClDesc;
-
-namespace nacl {
-class DescWrapper;
-}  // namespace nacl
-
-namespace plugin {
-
-// DescBasedHandles are used to convey NaClDesc objects through JavaScript.
-class DescBasedHandle {
- public:
-  // Creates a new DescBasedHandle using the specified plugin and wrapper.
-  // Returns NULL if either plugin or wrapper is NULL.
-  static DescBasedHandle* New(nacl::DescWrapper* wrapper);
-  ~DescBasedHandle();
-
-  // Because the factory ensured that wrapper was not NULL, dereferencing it
-  // here is always safe.
-  NaClDesc* desc() const { return wrapper_->desc(); }
-
- private:
-  NACL_DISALLOW_COPY_AND_ASSIGN(DescBasedHandle);
-  explicit DescBasedHandle(nacl::DescWrapper* wrapper);
-  nacl::scoped_ptr<nacl::DescWrapper> wrapper_;
-};
-
-}  // namespace plugin
-
-#endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_DESC_BASED_HANDLE_H_