base: export GetBuildTime

base/build_time.h

Index: base/build_time.h
diff --git a/base/build_time.h b/base/build_time.h
new file mode 100644
index 0000000000000000000000000000000000000000..6d413bc4dfc51fdac34651861aad04ec174b0440
--- /dev/null
+++ b/base/build_time.h
@@ -0,0 +1,26 @@
+// Copyright (c) 2011 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_BUILD_TIME_
+#define BASE_BUILD_TIME_
+#pragma once
+
+#include "base/base_export.h"
+#include "base/time.h"
+
+namespace base {
+
+// GetBuildTime returns the time at which the current binary was built.
+//
+// This uses the __DATE__ and __TIME__ macros, which don't trigger a rebuild
+// when they change. However, official builds will always be rebuilt from
+// scratch.
+//
+// Also, since __TIME__ doesn't include a timezone, this value should only be

[jar (doing other things), 2011/11/09 22:51:31]

suggestion: Append a timezone, so that the result of this call will be
independent of teh region you run in.  Without a trailing timezone, the value
will be locale dependent... which is an unnecessary variable.  You can append
the timezone at compile time by just putting a quoted string next to __TIME__.

[agl, 2011/11/10 19:02:58]

Done.

+// considered accurate to a day.
+Time BASE_EXPORT GetBuildTime();
+
+}  // namespace base
+
+#endif  // BASE_BUILD_TIME_