Switch to standard integer types in components/, part 3 of 4.

components/proximity_auth/logging/logging_unittest.cc

 // Copyright 2015 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 "components/proximity_auth/logging/logging.h"
 
+#include <stddef.h>
+
 #include "base/lazy_instance.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/proximity_auth/logging/log_buffer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace proximity_auth {
 
 namespace {
 
@@ skipping 91 matching lines @@
   PA_LOG(WARNING) << kLog2;
   PA_LOG(ERROR) << kLog3;
 
   ASSERT_EQ(3u, g_standard_logs.Get().size());
   EXPECT_NE(std::string::npos, g_standard_logs.Get()[0].find(kLog1));
   EXPECT_NE(std::string::npos, g_standard_logs.Get()[1].find(kLog2));
   EXPECT_NE(std::string::npos, g_standard_logs.Get()[2].find(kLog3));
 }
 
 }  // namespace proximity_auth