Remove PPB_Flash_NetConnector and ENABLE_FLAPPER_HACKS.

ppapi/thunk/ppb_flash_net_connector_api.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 PPAPI_THUNK_PPB_FLASH_NET_CONNECTOR_API_H_
-#define PPAPI_THUNK_PPB_FLASH_NET_CONNECTOR_API_H_
-
-#include "ppapi/c/private/ppb_flash_net_connector.h"
-
-namespace ppapi {
-namespace thunk {
-
-class PPB_Flash_NetConnector_API {
- public:
-  virtual ~PPB_Flash_NetConnector_API() {}
-
-  virtual int32_t ConnectTcp(const char* host,
-                             uint16_t port,
-                             PP_FileHandle* socket_out,
-                             PP_NetAddress_Private* local_addr_out,
-                             PP_NetAddress_Private* remote_addr_out,
-                             PP_CompletionCallback callback) = 0;
-  virtual int32_t ConnectTcpAddress(const PP_NetAddress_Private* addr,
-                                    PP_FileHandle* socket_out,
-                                    PP_NetAddress_Private* local_addr_out,
-                                    PP_NetAddress_Private* remote_addr_out,
-                                    PP_CompletionCallback callback) = 0;
-};
-
-}  // namespace thunk
-}  // namespace ppapi
-
-#endif  // PPAPI_THUNK_PPB_FLASH_NET_CONNECTOR_API_H_