Add feature params to control interest group storage size

Bug: 1257634
Change-Id: Ic9e74a539fb1a1d4fad28047a82ca4fdd73c89a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3216451
Reviewed-by: Hayato Ito <hayato@chromium.org>
Reviewed-by: Caleb Raitto <caraitto@chromium.org>
Commit-Queue: Russ Hamilton <behamilton@google.com>
Cr-Commit-Position: refs/heads/main@{#930923}
NOKEYCHECK=True
GitOrigin-RevId: 394ecbc9e580194461bdd4963fdefe0013623ba0

blink/common/features.cc

@@ -937,6 +937,13 @@ const base::Feature kThrottleDisplayNoneAndVisibilityHiddenCrossOriginIframes{
 // API exposure will be disabled regardless of the OT config.
 const base::Feature kInterestGroupStorage{"InterestGroupStorage",
                                           base::FEATURE_DISABLED_BY_DEFAULT};
+// TODO(crbug.com/1197209): Adjust these limits in response to usage.
+const base::FeatureParam<int> kInterestGroupStorageMaxOwners{
+    &kInterestGroupStorage, "max_owners", 1000};
+const base::FeatureParam<int> kInterestGroupStorageMaxGroupsPerOwner{
+    &kInterestGroupStorage, "max_groups_per_owner", 1000};
+const base::FeatureParam<int> kInterestGroupStorageMaxOpsBeforeMaintenance{
+    &kInterestGroupStorage, "max_ops_before_maintenance", 1000000};
 
 // Enable the availability of the ad interest group API as part of the
 // origin trial for FLEDGE or PARAKEET.

blink/public/common/features.h

@@ -388,6 +388,13 @@ BLINK_COMMON_EXPORT extern const base::Feature
 //
 // Backend storage + kill switch for Interest Group API  origin trials.
 BLINK_COMMON_EXPORT extern const base::Feature kInterestGroupStorage;
+//
+BLINK_COMMON_EXPORT extern const base::FeatureParam<int>
+    kInterestGroupStorageMaxOwners;
+BLINK_COMMON_EXPORT extern const base::FeatureParam<int>
+    kInterestGroupStorageMaxGroupsPerOwner;
+BLINK_COMMON_EXPORT extern const base::FeatureParam<int>
+    kInterestGroupStorageMaxOpsBeforeMaintenance;
 // Interest Group JS API/runtimeflag.
 BLINK_COMMON_EXPORT extern const base::Feature kAdInterestGroupAPI;
 // PARAKEET ad serving runtime flag/JS API.