[NaCl SDK] Add nacl_io and sdk_util namespaces.

native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h

 /* Copyright (c) 2013 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 LIBRARIES_NACL_IO_TEST_MOUNT_NODE_MOCK_H_
 #define LIBRARIES_NACL_IO_TEST_MOUNT_NODE_MOCK_H_
 
 #include "gmock/gmock.h"
 
 #include "nacl_io/mount.h"
 
-class MountNodeMock : public MountNode {
+class MountNodeMock : public nacl_io::MountNode {
  public:
-  explicit MountNodeMock(Mount*);
+  typedef nacl_io::Error Error;
+  typedef nacl_io::ScopedMountNode ScopedMountNode;
+
+  explicit MountNodeMock(nacl_io::Mount*);
   virtual ~MountNodeMock();
 
   MOCK_METHOD1(Init, Error(int));
   MOCK_METHOD0(Destroy, void());
   MOCK_METHOD0(FSync, Error());
   MOCK_METHOD1(FTruncate, Error(off_t));
   MOCK_METHOD4(GetDents, Error(size_t, struct dirent*, size_t, int*));
   MOCK_METHOD1(GetStat, Error(struct stat*));
   MOCK_METHOD2(Ioctl, Error(int, char*));
   MOCK_METHOD4(Read, Error(size_t, void*, size_t, int*));
   MOCK_METHOD4(Write, Error(size_t, const void*, size_t, int*));
   MOCK_METHOD6(MMap, Error(void*, size_t, int, int, size_t, void**));
   MOCK_METHOD0(GetLinks, int());
   MOCK_METHOD0(GetMode, int());
   MOCK_METHOD0(GetType, int());
   MOCK_METHOD1(GetSize, Error(size_t*));
   MOCK_METHOD0(IsaDir, bool());
   MOCK_METHOD0(IsaFile, bool());
   MOCK_METHOD0(IsaTTY, bool());
   MOCK_METHOD0(ChildCount, int());
   MOCK_METHOD2(AddChild, Error(const std::string&, const ScopedMountNode&));
   MOCK_METHOD1(RemoveChild, Error(const std::string&));
   MOCK_METHOD2(FindChild, Error(const std::string&, ScopedMountNode*));
   MOCK_METHOD0(Link, void());
   MOCK_METHOD0(Unlink, void());
 };
 
 #endif  // LIBRARIES_NACL_IO_TEST_MOUNT_NODE_MOCK_H_