Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/src/shared/ppapi_proxy/nacl_file.srpc

Index: ppapi/native_client/src/shared/ppapi_proxy/nacl_file.srpc
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/nacl_file.srpc	(revision 0)
+++ ppapi/native_client/src/shared/ppapi_proxy/nacl_file.srpc	(revision 0)
@@ -0,0 +1,28 @@
+# Copyright (c) 2011 The Native Client Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+#
+# RPC methods used to implement nacl_file support.
+# See native_client/src/untrusted/ppapi/nacl_file.h for interface details.
+
+{
+ 'name': 'NaClFileRpc',
+ 'rpcs': [
+          {'name': 'StreamAsFile',
+           'inputs': [['instance', 'PP_Instance'],
+                      ['url', 'string'],
+                      ['callback_id', 'int32_t'],
+                     ],
+           # No return value as the callback will always
+           # be invoked on success or failure.
+           'outputs': []
+          },
+          {'name': 'GetFileDesc',
+           'inputs': [['instance', 'PP_Instance'],
+                      ['url', 'string'],
+                     ],
+           'outputs': [['file_desc', 'handle'],
+                      ]
+          }
+         ]
+}