[Sync] Add support for server controlled nudge delays

sync/test/engine/fake_sync_scheduler.cc

Index: sync/test/engine/fake_sync_scheduler.cc
diff --git a/sync/test/engine/fake_sync_scheduler.cc b/sync/test/engine/fake_sync_scheduler.cc
index 817b37c993dcc132aad5b3badbb71495eeccc4d7..a9b6f57d490479df16493f57f5062ddc6cc08a29 100644
--- a/sync/test/engine/fake_sync_scheduler.cc
+++ b/sync/test/engine/fake_sync_scheduler.cc
@@ -17,19 +17,16 @@ void FakeSyncScheduler::Stop() {
 }
 
 void FakeSyncScheduler::ScheduleLocalNudge(
-    const base::TimeDelta& desired_delay,
     ModelTypeSet types,
     const tracked_objects::Location& nudge_location) {
 }
 
 void FakeSyncScheduler::ScheduleLocalRefreshRequest(
-    const base::TimeDelta& desired_delay,
     ModelTypeSet types,
     const tracked_objects::Location& nudge_location) {
 }
 
 void FakeSyncScheduler::ScheduleInvalidationNudge(
-    const base::TimeDelta& desired_delay,
     syncer::ModelType type,
     scoped_ptr<InvalidationInterface> interface,
     const tracked_objects::Location& nudge_location) {
@@ -46,10 +43,6 @@ void FakeSyncScheduler::ScheduleInitialSyncNudge(syncer::ModelType model_type) {
 void FakeSyncScheduler::SetNotificationsEnabled(bool notifications_enabled) {
 }
 
-base::TimeDelta FakeSyncScheduler::GetSessionsCommitDelay() const {
-  return base::TimeDelta();
-}
-
 void FakeSyncScheduler::OnCredentialsUpdated() {
 
 }
@@ -72,15 +65,15 @@ bool FakeSyncScheduler::IsCurrentlyThrottled() {
 }
 
 void FakeSyncScheduler::OnReceivedShortPollIntervalUpdate(
-     const base::TimeDelta& new_interval) {
+    const base::TimeDelta& new_interval) {
 }
 
 void FakeSyncScheduler::OnReceivedLongPollIntervalUpdate(
-     const base::TimeDelta& new_interval) {
+    const base::TimeDelta& new_interval) {
 }
 
-void FakeSyncScheduler::OnReceivedSessionsCommitDelay(
-     const base::TimeDelta& new_delay) {
+void FakeSyncScheduler::OnReceivedCustomNudgeDelays(
+    const std::map<ModelType, base::TimeDelta>& nudge_delays) {
 }
 
 void FakeSyncScheduler::OnReceivedClientInvalidationHintBufferSize(int size) {