sync: raise initial backoff interval from 1 second to 5 minutes.

sync/engine/sync_scheduler_impl.cc

Index: sync/engine/sync_scheduler_impl.cc
diff --git a/sync/engine/sync_scheduler_impl.cc b/sync/engine/sync_scheduler_impl.cc
index ec7143de6a9cfc49946833c7173ff747586bad42..87411a47b1ee0d043311720ed4bb4341736ea7d9 100644
--- a/sync/engine/sync_scheduler_impl.cc
+++ b/sync/engine/sync_scheduler_impl.cc
@@ -907,7 +907,7 @@ void SyncSchedulerImpl::HandleContinuationError(
   }
 
   TimeDelta length = delay_provider_->GetDelay(
-      IsBackingOff() ? wait_interval_->length : TimeDelta::FromSeconds(1));
+      IsBackingOff() ? wait_interval_->length : TimeDelta::FromMinutes(5));

[rlarocque, 2012/08/08 01:58:23]

While you're changing this, maybe it should be moved to polling_constants.h?

[tim (not reviewing), 2012/08/08 05:57:04]

I actually want to do that, but I want to keep this as tiny as possible
particularly for TPMs since we'll want to merge to beta on very short notice. 
I'll prep a follow up.

 
   SDVLOG(2) << "In handle continuation error with "
             << SyncSessionJob::GetPurposeString(old_job.purpose)