Switch to standard integer types in mojo/.

mojo/shell/data_pipe_peek_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.
 
 #include "mojo/shell/data_pipe_peek.h"
 
+#include <stddef.h>
+#include <stdint.h>
+
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace runner {
 namespace {
 
 TEST(DataPipePeek, PeekNBytes) {
   DataPipe data_pipe;
   DataPipeConsumerHandle consumer(data_pipe.consumer_handle.get());
   DataPipeProducerHandle producer(data_pipe.producer_handle.get());
@@ skipping 87 matching lines @@
   // newline terminated string, then peek should fail.
 
   max_str_length = 3;
   EXPECT_FALSE(
       shell::BlockingPeekLine(consumer, &str, max_str_length, timeout));
 }
 
 }  // namespace
 }  // namespace runner
 }  // namespace mojo