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

util/test/executable_path_test.cc

Index: util/test/executable_path_test.cc
diff --git a/util/test/executable_path_test.cc b/util/test/executable_path_test.cc
index b99d3d9104d7bceb902f8e488adeab1d5557a4a2..3682a4b3d7cea127e69e5f76f5aeaadd60c13c9e 100644
--- a/util/test/executable_path_test.cc
+++ b/util/test/executable_path_test.cc
@@ -17,10 +17,10 @@
 #include "base/files/file_path.h"
 #include "gtest/gtest.h"
 
+namespace crashpad {
+namespace test {
 namespace {
 
-using namespace crashpad::test;
-
 TEST(ExecutablePath, ExecutablePath) {
   base::FilePath executable_path = ExecutablePath();
   base::FilePath executable_name = executable_path.BaseName();
@@ -28,3 +28,5 @@ TEST(ExecutablePath, ExecutablePath) {
 }
 
 }  // namespace
+}  // namespace test
+}  // namespace crashpad