Switch to standard integer types in mojo/.

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 <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 515 matching lines @@
   CHECK_EQ(MojoReadMessage(handles[0], &read_buffer[0],
                            &read_buffer_size, nullptr,
                            0, MOJO_READ_MESSAGE_FLAG_NONE),
            MOJO_RESULT_OK);
   read_buffer.resize(read_buffer_size);
   CHECK_EQ(read_buffer, std::string("hello"));
 
   // Now write some data into the message pipe.
   std::string write_buffer = "world";
   CHECK_EQ(MojoWriteMessage(handles[0], write_buffer.data(),
-                            static_cast<uint32>(write_buffer.size()),
-                            nullptr, 0u, MOJO_WRITE_MESSAGE_FLAG_NONE),
-            MOJO_RESULT_OK);
+                            static_cast<uint32_t>(write_buffer.size()), nullptr,
+                            0u, MOJO_WRITE_MESSAGE_FLAG_NONE),
+           MOJO_RESULT_OK);
   MojoClose(handles[0]);
   return 0;
 }
 
 #if defined(OS_ANDROID)
 // Android multi-process tests are not executing the new process. This is flaky.
 #define MAYBE_MessagePipePassing DISABLED_MessagePipePassing
 #else
 #define MAYBE_MessagePipePassing MessagePipePassing
 #endif
@@ skipping 199 matching lines @@
 
   MojoClose(mp1);
   MojoClose(mp.release().value());
 
   ASSERT_EQ(0, helper()->WaitForChildShutdown());
 }
 
 }  // namespace
 }  // namespace edk
 }  // namespace mojo