Add flag metadata for missive-storage-config

Bug: b:276503229
Change-Id: I703d8a68844c4debc666bf053d28c195105b79a0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4517353
Reviewed-by: Josh Hilke <[email protected]>
Commit-Queue: Leonid Baraz <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1141741}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index a3c926d..923dc336 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -6290,6 +6290,10 @@
     "Dynamic Cgroup allows tasks from media workload to be consolidated on "
     "limited cpuset";
 
+const char kMissiveStorageName[] = "Missive Daemon Storage Configuration";
+const char kMissiveStorageDescription[] =
+    "Provides missive daemon with custom storage configuration parameters";
+
 const char kShowBluetoothDebugLogToggleName[] =
     "Show Bluetooth debug log toggle";
 const char kShowBluetoothDebugLogToggleDescription[] =