[NaCl SDK] Add nacl_io and sdk_util namespaces.

native_client_sdk/src/libraries/nacl_io_test/mount_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_MOCK_H_
 #define LIBRARIES_NACL_IO_TEST_MOUNT_MOCK_H_
 
 #include "gmock/gmock.h"
 
 #include "nacl_io/mount.h"
 
-class MountMock : public Mount {
+class MountMock : public nacl_io::Mount {
  public:
+  typedef nacl_io::Error Error;
+  typedef nacl_io::Path Path;
+  typedef nacl_io::PepperInterface PepperInterface;
+  typedef nacl_io::ScopedMountNode ScopedMountNode;
+  typedef nacl_io::StringMap_t StringMap_t;
+
   MountMock();
   virtual ~MountMock();
 
   MOCK_METHOD3(Init, Error(int, StringMap_t&, PepperInterface*));
   MOCK_METHOD0(Destroy, void());
   MOCK_METHOD2(Access, Error(const Path&, int));
   MOCK_METHOD3(Open, Error(const Path&, int, ScopedMountNode*));
   MOCK_METHOD2(OpenResource, Error(const Path&, ScopedMountNode*));
   MOCK_METHOD1(Unlink, Error(const Path&));
   MOCK_METHOD2(Mkdir, Error(const Path&, int));
   MOCK_METHOD1(Rmdir, Error(const Path&));
   MOCK_METHOD1(Remove, Error(const Path&));
 };
 
 #endif  // LIBRARIES_NACL_IO_TEST_MOUNT_MOCK_H_