tree f508fef3f0558b60beb20a5e47af5edb8f7d0611
parent 49eae602ddd72eb5d1e41f3cfd8cc714fb18cc79
author QUICHE team <quiche-dev@google.com> 1768350330 -0800
committer Copybara-Service <copybara-worker@google.com> 1768350384 -0800

Add UpdateMaxSize to QuicLRUCache.

This change allows the maximum size of the QuicLRUCache to be updated after creation. If the new maximum size is smaller than the current number of elements in the cache, the oldest entries are evicted to meet the new capacity. The capacity_ member is no longer const. New tests are added to verify the behavior of UpdateMaxSize and insertions with different cache capacities, including a zero capacity, which is explicitly supported as a way to disable the cache.

This will be used in Chromium to reduce the capacity of a cache when memory pressure is detected.

This is a no-op change to production code if the new method is not called.

PiperOrigin-RevId: 855929998