
VM instance identity tokens are good for ~1 hour so we can reuse the same token during that time for service requests. This class will be used in the heartbeat and session authorization impls so we don't request new tokens for every request to the CRD backend. Bug: 388885661 Change-Id: I6e8f6d62eb6a307f9984b2e75af80fc92786050e Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6299649 Auto-Submit: Joe Downing <joedow@chromium.org> Reviewed-by: Yuwei Huang <yuweih@chromium.org> Commit-Queue: Joe Downing <joedow@chromium.org> Cr-Commit-Position: refs/heads/main@{#1424285}