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-rw-r--r--net/disk_cache/backend_impl.cc34
1 files changed, 6 insertions, 28 deletions
diff --git a/net/disk_cache/backend_impl.cc b/net/disk_cache/backend_impl.cc
index 3903a58..081ef18 100644
--- a/net/disk_cache/backend_impl.cc
+++ b/net/disk_cache/backend_impl.cc
@@ -175,35 +175,13 @@ bool InitExperiment(disk_cache::IndexHeader* header, uint32 mask) {
return false;
}
- // See if we already defined the group for this profile.
- if (header->experiment > disk_cache::EXPERIMENT_DELETED_LIST_OUT) {
- SetFieldTrialInfo(header->experiment);
- return true;
- }
-
- if (!header->create_time || !header->lru.filled)
- return true; // Wait untill we fill up the cache.
-
- int index_load = header->num_entries * 100 / (mask + 1);
- if (index_load > 25) {
- // Out of the experiment (~18% users).
- header->experiment = disk_cache::EXPERIMENT_DELETED_LIST_OUT2;
- return true;
- }
+ // The current experiment is closed for new profiles.
+ if (header->experiment < disk_cache::EXPERIMENT_DELETED_LIST_OUT)
+ header->experiment = disk_cache::EXPERIMENT_DELETED_LIST_OUT;
- int option = base::RandInt(0, 4);
- if (option > 1) {
- // 60% out (49% of the total).
- header->experiment = disk_cache::EXPERIMENT_DELETED_LIST_OUT2;
- } else if (!option) {
- // About 16% of the total.
- header->experiment = disk_cache::EXPERIMENT_DELETED_LIST_CONTROL;
- } else {
- // About 16% of the total.
- header->experiment = disk_cache::EXPERIMENT_DELETED_LIST_IN;
- }
-
- SetFieldTrialInfo(header->experiment);
+ // If we are part of the experiment, set up the field trial.
+ if (header->experiment > disk_cache::EXPERIMENT_DELETED_LIST_OUT)
+ SetFieldTrialInfo(header->experiment);
return true;
}