Add more data to SnapshotMergeReported.

This adds io_uring, userspace snapshots, and xor compression information
to SnapshotMergeReported.

Bug: 222117189
Test: stats_testdrive after OTA
Change-Id: I94f046cd7bd621a3b166c470f2a1e113363c8e8c
diff --git a/aosp/dynamic_partition_control_android.h b/aosp/dynamic_partition_control_android.h
index 92761d2..9851a99 100644
--- a/aosp/dynamic_partition_control_android.h
+++ b/aosp/dynamic_partition_control_android.h
@@ -45,6 +45,7 @@
   FeatureFlag GetVirtualAbFeatureFlag() override;
   FeatureFlag GetVirtualAbCompressionFeatureFlag() override;
   FeatureFlag GetVirtualAbCompressionXorFeatureFlag() override;
+  FeatureFlag GetVirtualAbUserspaceSnapshotsFeatureFlag() override;
   bool OptimizeOperation(const std::string& partition_name,
                          const InstallOperation& operation,
                          InstallOperation* optimized) override;
@@ -341,6 +342,7 @@
   const FeatureFlag virtual_ab_;
   const FeatureFlag virtual_ab_compression_;
   const FeatureFlag virtual_ab_compression_xor_;
+  const FeatureFlag virtual_ab_userspace_snapshots_;
   std::unique_ptr<android::snapshot::ISnapshotManager> snapshot_;
   std::unique_ptr<android::snapshot::AutoDevice> metadata_device_;
   bool target_supports_snapshot_ = false;