Fix some Windows compile issues.

mojo/edk/system/multiprocess_message_pipe_unittest.cc

 // Copyright 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.
 
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
 
 #include <string>
 #include <vector>
@@ skipping 491 matching lines @@
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_PEER_CLOSED, hss.satisfied_signals);
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_PEER_CLOSED, hss.satisfiable_signals);
 
   mp->Close(0);
 
   EXPECT_EQ(0, helper()->WaitForChildShutdown());
 }
 
 // Not yet implemented (on Windows).
 // Android multi-process tests are not executing the new process. This is flaky.
-#if defined(OS_POSIX) and !defined(OS_ANDROID)
+#if defined(OS_POSIX) && !defined(OS_ANDROID)
 INSTANTIATE_TEST_CASE_P(PipeCount,
                         MultiprocessMessagePipeTestWithPipeCount,
                         testing::Values(1u, 10u, 25u));
 #endif
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo