Add flag for finch to stop more task queues.

A field trial param will be used to specifically stop
deferrable vs. pauseable task queues.

Doc: https://docs.google.com/document/d/10D2uvOVxBZ2YhcwtK1XOb6CClminPpqAeS82KOVT7hk/edit#

BUG: 822954

Change-Id: Ia41e970f22b733150393ecc8ae09a3df7f2295ca
Reviewed-on: https://chromium-review.googlesource.com/967442
Commit-Queue: Shubhie Panicker <[email protected]>
Reviewed-by: Alexander Timin <[email protected]>
Reviewed-by: John Abd-El-Malek <[email protected]>
Reviewed-by: Scott Violet <[email protected]>
Cr-Commit-Position: refs/heads/master@{#544601}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index a6128bc..8eacebd 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -1474,13 +1474,19 @@
 const char kStopInBackgroundName[] = "Stop in background";
 const char kStopInBackgroundDescription[] =
     "Stop scheduler task queues, in the background, "
-    " after certain grace time.";
+    " after a grace period.";
 
 const char kStopLoadingInBackgroundName[] = "Stop loading in background";
 const char kStopLoadingInBackgroundDescription[] =
     "Stop loading tasks and loading "
     "resources, in the background, after certain grace time.";
 
+const char kStopNonTimersInBackgroundName[] =
+    "Stop non-timer task queues background";
+const char kStopNonTimersInBackgroundDescription[] =
+    "Stop non-timer task queues, in the background, "
+    "after a grace period.";
+
 const char kSuggestionsWithSubStringMatchName[] =
     "Substring matching for Autofill suggestions";
 const char kSuggestionsWithSubStringMatchDescription[] =