Fixes for re-enabling more MSVC level 4 warnings: sandbox/ edition

sandbox/win/tests/common/controller.cc

Index: sandbox/win/tests/common/controller.cc
diff --git a/sandbox/win/tests/common/controller.cc b/sandbox/win/tests/common/controller.cc
index ac20f6c7b5b251245548c3972e1bcec445ba5e16..8d355b6549bb8442449066bbafb26b26869d318f 100644
--- a/sandbox/win/tests/common/controller.cc
+++ b/sandbox/win/tests/common/controller.cc
@@ -247,13 +247,13 @@ int TestRunner::InternalRunTest(const wchar_t* command) {
   }
 
   if (WAIT_TIMEOUT == ::WaitForSingleObject(target.hProcess, timeout_)) {
-    ::TerminateProcess(target.hProcess, SBOX_TEST_TIMED_OUT);
+    ::TerminateProcess(target.hProcess, static_cast<UINT>(SBOX_TEST_TIMED_OUT));
     ::CloseHandle(target.hProcess);
     ::CloseHandle(target.hThread);
     return SBOX_TEST_TIMED_OUT;
   }
 
-  DWORD exit_code = SBOX_TEST_LAST_RESULT;
+  DWORD exit_code = static_cast<DWORD>(SBOX_TEST_LAST_RESULT);
   if (!::GetExitCodeProcess(target.hProcess, &exit_code)) {
     ::CloseHandle(target.hProcess);
     ::CloseHandle(target.hThread);