Fixing remaining VC++ 2015 64-bit build breaks

sandbox/win/src/handle_inheritance_test.cc

Index: sandbox/win/src/handle_inheritance_test.cc
diff --git a/sandbox/win/src/handle_inheritance_test.cc b/sandbox/win/src/handle_inheritance_test.cc
index 1a411b543b41388c7b5698b968f0583bf72b3322..60dd3ee3a3b466c3d6ee8d03d732a447061b34ec 100644
--- a/sandbox/win/src/handle_inheritance_test.cc
+++ b/sandbox/win/src/handle_inheritance_test.cc
@@ -10,6 +10,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/scoped_handle.h"
+#include "base/win/win_util.h"
 #include "base/win/windows_version.h"
 #include "sandbox/win/tests/common/controller.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -84,7 +85,7 @@ TEST(HandleInheritanceTests, InheritByValue) {
 
   std::string command_line =
       "HandleInheritanceTests_ValidInheritedHandle " +
-      base::UintToString(reinterpret_cast<unsigned int>(shared_handle));
+      base::UintToString(base::win::HandleToUint32(shared_handle));
   int result = runner.RunTest(base::UTF8ToUTF16(command_line).c_str());
   ASSERT_EQ(SBOX_TEST_SUCCEEDED, result);
 }