Make cachePolicy int to avoid string comparison
Make cachePolicy int to avoid string comparison

PiperOrigin-RevId: 196157086
Change-Id: Ia7f7ffe1bf486b21ef8091e2e8ef9a9faf733dfc

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor