net: make pinning enforcement timeout after ten weeks.

net/base/build_time.h

+// 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 NET_BASE_BUILD_TIME_
+#define NET_BASE_BUILD_TIME_
+#pragma once
+
+#include "net/base/net_export.h"
+
+namespace net {
+
+// GetDaysSinceBuild returns the number of days since the current binary was
+// built.
+//
+// This uses the __DATE__ macro, which doesn't trigger a rebuild when it
+// changes. However, official builds will always be rebuilt from scratch.
+int NET_EXPORT GetDaysSinceBuild();

[wtc, 2011/11/08 19:43:40]

This function should be in src/base.  I am a little surprised
that we don't have such a function.

It seems that returning the build time as a base::Time would
make the function more flexible.

+
+}  // namespace net
+
+#endif  // NET_BASE_BUILD_TIME_