Add the ability to schedule any pending lossy prefs to be written.

chrome/browser/prefs/tracked/segregated_pref_store.cc

Index: chrome/browser/prefs/tracked/segregated_pref_store.cc
diff --git a/chrome/browser/prefs/tracked/segregated_pref_store.cc b/chrome/browser/prefs/tracked/segregated_pref_store.cc
index a19e56728661e17293029c8bb8886fbf47402ea0..19bc1255f409c48c34b2aeba018760a288f3d56d 100644
--- a/chrome/browser/prefs/tracked/segregated_pref_store.cc
+++ b/chrome/browser/prefs/tracked/segregated_pref_store.cc
@@ -150,6 +150,11 @@ void SegregatedPrefStore::CommitPendingWrite() {
   selected_pref_store_->CommitPendingWrite();
 }
 
+void SegregatedPrefStore::SchedulePendingLossyWrites() {
+  default_pref_store_->SchedulePendingLossyWrites();
+  selected_pref_store_->SchedulePendingLossyWrites();
+}
+
 SegregatedPrefStore::~SegregatedPrefStore() {
   default_pref_store_->RemoveObserver(&aggregating_observer_);
   selected_pref_store_->RemoveObserver(&aggregating_observer_);