Add about://flags entry for IPH snooze

Fixed: 1136181
Change-Id: Iaa1049d67195d1292749dbe30b3e2a2da6bd4fc4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2458586
Commit-Queue: Collin Baker <[email protected]>
Commit-Queue: Wei Li <[email protected]>
Auto-Submit: Collin Baker <[email protected]>
Reviewed-by: Wei Li <[email protected]>
Cr-Commit-Position: refs/heads/master@{#814889}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 45de6f6b..6192a5f 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -4480,6 +4480,12 @@
 
 #if defined(TOOLKIT_VIEWS)
 
+const char kDesktopInProductHelpSnoozeName[] =
+    "Allow snooze on supported in-product help promos";
+const char kDesktopInProductHelpSnoozeDescription[] =
+    "Snoozing an in-product help promo closes it and schedules it to be shown "
+    "later. When enabled, this functionality is allowed on supported promos.";
+
 const char kEnableMDRoundedCornersOnDialogsName[] =
     "MD corners on secondary UI";
 const char kEnableMDRoundedCornersOnDialogsDescription[] =