Use Chromium's code for locating the src dir.
This code is much more sophisticated in that it doesn't rely
on argv[0], but rather asks the OS where our executable is.
We can then simply go two steps up since we count on running
in out/Whatever relative to the src dir. This is how Chromium
does it.
The aim here is to get rid of SetExecutablePath, which will
be the next CL.
Bug: webrtc:9792
Change-Id: I7da027b7391e759b1f612de12f27a244fe884c09
Reviewed-on: https://webrtc-review.googlesource.com/c/103121
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25017}diff --git a/test/testsupport/macfileutils.h b/test/testsupport/macfileutils.h
new file mode 100644
index 0000000..82ae866
--- /dev/null
+++ b/test/testsupport/macfileutils.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2018 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.
+ */
+
+#ifndef TEST_TESTSUPPORT_MACFILEUTILS_H_
+#define TEST_TESTSUPPORT_MACFILEUTILS_H_
+
+#include <string>
+
+namespace webrtc {
+namespace test {
+
+void GetNSExecutablePath(std::string* path);
+
+} // namespace test
+} // namespace webrtc
+
+#endif // TEST_TESTSUPPORT_MACFILEUTILS_H_
