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9214ee309fa224a43eb1621bcf826ab9c86a4cd7 by Abseil Team <absl-team@google.com>:

Don't keep constructing/destructing `random_device`.

It causes an open/close pair on /dev/urandom.

This is somewhat expensive on Emscripten, and unnecessary since it is not using
the value anyway.

PiperOrigin-RevId: 332055452

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4931ab77995b946f3ffba8036e0a00927b0d47e6 by Abseil Team <absl-team@google.com>:

TYPO: Stess->Stress

PiperOrigin-RevId: 332010526

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95ae1dde505f74dc7fd68447bf27718db223688e by Gennadiy Rozental <rogeeff@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 332010411
GitOrigin-RevId: 9214ee309fa224a43eb1621bcf826ab9c86a4cd7
Change-Id: I23c5d6aa5aa488370e1b48f37366d3d99448e7ec