Don’t use using directives (“using namespace”) in tests

util/numeric/in_range_cast_test.cc

Index: util/numeric/in_range_cast_test.cc
diff --git a/util/numeric/in_range_cast_test.cc b/util/numeric/in_range_cast_test.cc
index 340c862c218299e5c62a5c39516fe40d42115b2e..52eeedf5d2a942a5204011c63b20593695ae92a6 100644
--- a/util/numeric/in_range_cast_test.cc
+++ b/util/numeric/in_range_cast_test.cc
@@ -20,10 +20,10 @@
 
 #include "gtest/gtest.h"
 
+namespace crashpad {
+namespace test {
 namespace {
 
-using namespace crashpad;
-
 const int32_t kInt32Min = std::numeric_limits<int32_t>::min();
 const int64_t kInt64Min = std::numeric_limits<int64_t>::min();
 
@@ -115,3 +115,5 @@ TEST(InRangeCast, Int64) {
 }
 
 }  // namespace
+}  // namespace test
+}  // namespace crashpad