Cloning a bunch of stuff from the native_client repository at r6528

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

+# 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 PPB_FileSystem calls from the plugin.
+# See ppapi/c/ppb_file_system.h for interface details.
+
+{
+  'name': 'PpbFileSystemRpc',
+  'rpcs': [
+          {'name': 'PPB_FileSystem_Create',
+           'inputs': [['instance', 'PP_Instance'],
+                      ['file_system_type', 'int32_t'],   # PP_FileSystemType
+                      ],
+           'outputs': [['resource', 'PP_Resource'],
+                       ]
+          },
+          {'name': 'PPB_FileSystem_IsFileSystem',
+           'inputs': [['resource', 'PP_Resource'],
+                      ],
+           'outputs': [['success', 'int32_t'],  # PP_Bool
+                       ]
+          },
+          {'name': 'PPB_FileSystem_Open',
+           'inputs': [['file_system', 'PP_Resource'],
+                      ['expected_size', 'int64_t'],
+                      ['callback_id', 'int32_t']
+                      ],
+           'outputs': [['pp_error', 'int32_t'],
+                       ]
+          },
+          {'name': 'PPB_FileSystem_GetType',
+           'inputs': [['file_system', 'PP_Resource'],
+                      ],
+           'outputs': [['type', 'int32_t'],  # PP_FileSystemType
+                       ],
+          }
+          ]
+}
+