Switch to standard integer types in gpu/.

gpu/config/gpu_control_list_number_info_unittest.cc

 // Copyright (c) 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 "gpu/config/gpu_control_list.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gpu {
 
 class NumberInfoTest : public testing::Test {
  public:
   NumberInfoTest() { }
   ~NumberInfoTest() override {}
 
@@ skipping 200 matching lines @@
   }
   {
     BoolInfo info(false);
     EXPECT_FALSE(info.Contains(true));
     EXPECT_TRUE(info.Contains(false));
   }
 }
 
 }  // namespace gpu