Use saturated_cast<> instead of checked_cast<> for converting

net/disk_cache/simple/simple_index.cc

Index: net/disk_cache/simple/simple_index.cc
diff --git a/net/disk_cache/simple/simple_index.cc b/net/disk_cache/simple/simple_index.cc
index 8689b382fbded733c414e926d3e2bdb65538e51e..be3208b74a7ca42bb76a6326c2d0b80b623d4ec0 100644
--- a/net/disk_cache/simple/simple_index.cc
+++ b/net/disk_cache/simple/simple_index.cc
@@ -105,7 +105,7 @@ void EntryMetadata::SetLastUsedTime(const base::Time& last_used_time) {
     return;
   }
 
-  last_used_time_seconds_since_epoch_ = base::checked_cast<uint32_t>(
+  last_used_time_seconds_since_epoch_ = base::saturated_cast<uint32_t>(
       (last_used_time - base::Time::UnixEpoch()).InSeconds());
   // Avoid accidental nullity.
   if (last_used_time_seconds_since_epoch_ == 0)