Update from https://crrev.com/306655

base/test/gtest_util.h

Index: base/test/gtest_util.h
diff --git a/base/test/gtest_util.h b/base/test/gtest_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..93382f846665c514e48f8cfc3a3cae9b1f4cfe44
--- /dev/null
+++ b/base/test/gtest_util.h
@@ -0,0 +1,31 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_TEST_GTEST_UTIL_H_
+#define BASE_TEST_GTEST_UTIL_H_
+
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "base/compiler_specific.h"
+
+namespace base {
+
+class FilePath;
+
+// First value is test case name, second one is test name.
+typedef std::pair<std::string, std::string> SplitTestName;
+
+// Returns a vector of gtest-based tests compiled into
+// current executable.
+std::vector<SplitTestName> GetCompiledInTests();
+
+// Writes the list of gtest-based tests compiled into
+// current executable as a JSON file. Returns true on success.
+bool WriteCompiledInTestsToFile(const FilePath& path) WARN_UNUSED_RESULT;
+
+}  // namespace base
+
+#endif  // BASE_TEST_GTEST_UTIL_H_