Enable GN check for webrtc/base

webrtc/system_wrappers/source/stringize_macros_unittest.cc

Index: webrtc/system_wrappers/source/stringize_macros_unittest.cc
diff --git a/webrtc/system_wrappers/source/stringize_macros_unittest.cc b/webrtc/system_wrappers/source/stringize_macros_unittest.cc
deleted file mode 100644
index 8b103c5d391fc3dd9af6d8e1263df29379eacc9f..0000000000000000000000000000000000000000
--- a/webrtc/system_wrappers/source/stringize_macros_unittest.cc
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/system_wrappers/include/stringize_macros.h"
-
-#include "webrtc/test/gtest.h"
-
-// Macros as per documentation in header file.
-#define PREPROCESSOR_UTIL_UNITTEST_A FOO
-#define PREPROCESSOR_UTIL_UNITTEST_B(x) myobj->FunctionCall(x)
-#define PREPROCESSOR_UTIL_UNITTEST_C "foo"
-
-TEST(StringizeTest, Ansi) {
-  EXPECT_STREQ(
-      "PREPROCESSOR_UTIL_UNITTEST_A",
-      STRINGIZE_NO_EXPANSION(PREPROCESSOR_UTIL_UNITTEST_A));
-  EXPECT_STREQ(
-      "PREPROCESSOR_UTIL_UNITTEST_B(y)",
-      STRINGIZE_NO_EXPANSION(PREPROCESSOR_UTIL_UNITTEST_B(y)));
-  EXPECT_STREQ(
-      "PREPROCESSOR_UTIL_UNITTEST_C",
-      STRINGIZE_NO_EXPANSION(PREPROCESSOR_UTIL_UNITTEST_C));
-
-  EXPECT_STREQ("FOO", STRINGIZE(PREPROCESSOR_UTIL_UNITTEST_A));
-  EXPECT_STREQ("myobj->FunctionCall(y)",
-               STRINGIZE(PREPROCESSOR_UTIL_UNITTEST_B(y)));
-  EXPECT_STREQ("\"foo\"", STRINGIZE(PREPROCESSOR_UTIL_UNITTEST_C));
-}