Add most of base/ build/ buildtools/ testing/ third_party/googletest/
Enough to make ./tools/gn/bootstrap/bootstrap.py work on Linux.
Change-Id: I94de95f1ce87dd3672d1a99c62254edee8be45bd
Reviewed-on: https://gn-review.googlesource.com/1100
Reviewed-by: Petr Hosek <phosek@google.com>
Commit-Queue: Scott Graham <scottmg@chromium.org>
diff --git a/base/scoped_clear_errno.h b/base/scoped_clear_errno.h
new file mode 100644
index 0000000..585f6f7
--- /dev/null
+++ b/base/scoped_clear_errno.h
@@ -0,0 +1,34 @@
+// Copyright (c) 2013 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_SCOPED_CLEAR_ERRNO_H_
+#define BASE_SCOPED_CLEAR_ERRNO_H_
+
+#include <errno.h>
+
+#include "base/macros.h"
+
+namespace base {
+
+// Simple scoper that saves the current value of errno, resets it to 0, and on
+// destruction puts the old value back.
+class ScopedClearErrno {
+ public:
+ ScopedClearErrno() : old_errno_(errno) {
+ errno = 0;
+ }
+ ~ScopedClearErrno() {
+ if (errno == 0)
+ errno = old_errno_;
+ }
+
+ private:
+ const int old_errno_;
+
+ DISALLOW_COPY_AND_ASSIGN(ScopedClearErrno);
+};
+
+} // namespace base
+
+#endif // BASE_SCOPED_CLEAR_ERRNO_H_
