[CrOS SLP] Create feature flag for SIM Lock Policy.

Bug: b/228093904
Change-Id: Idcac45e5023fee92554dbcd9fab99751ef08c30c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3570054
Reviewed-by: Azeem Arshad <[email protected]>
Commit-Queue: Regan Hsu <[email protected]>
Cr-Commit-Position: refs/heads/main@{#989125}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index a670e74..beb43ca 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -2339,6 +2339,11 @@
     "Visualize overdraw by color-coding elements based on if they have other "
     "elements drawn underneath.";
 
+extern const char kSimLockPolicyName[] = "SIM Lock Policy";
+extern const char kSimLockPolicyDescription[] =
+    "Enable the support for policy controlled enabling or disabling of PIN "
+    "Locking SIMs on managed devices.";
+
 const char kSkiaRendererName[] = "Skia API for compositing";
 const char kSkiaRendererDescription[] =
     "If enabled, the display compositor will use Skia as the graphics API "