Switch to standard integer types in mojo/.

mojo/public/cpp/system/tests/core_unittest.cc

 // Copyright 2014 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.
 
 // This file tests the C++ Mojo system core wrappers.
 // TODO(vtl): Maybe rename "CoreCppTest" -> "CoreTest" if/when this gets
 // compiled into a different binary from the C API tests.
 
 #include "mojo/public/cpp/system/core.h"
 
 #include <stddef.h>
+#include <stdint.h>
 
 #include <map>
 
 #include "mojo/public/cpp/system/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace {
 
 const MojoHandleSignals kSignalReadableWritable =
@@ skipping 464 matching lines @@
 
   buffer1 = buffer1.Pass();
 
   EXPECT_TRUE(buffer1.is_valid());
 }
 
 // TODO(vtl): Write data pipe tests.
 
 }  // namespace
 }  // namespace mojo