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

sync/engine/sync_scheduler_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/engine/sync_scheduler_impl.h"
 
 #include <algorithm>
 #include <cstring>
 
 #include "base/bind.h"
@@ skipping 889 matching lines @@
 void SyncSchedulerImpl::HandleContinuationError(
     const SyncSessionJob& old_job) {
   DCHECK_EQ(MessageLoop::current(), sync_loop_);
   if (DCHECK_IS_ON()) {
     if (IsBackingOff()) {
       DCHECK(wait_interval_->timer.IsRunning() || old_job.is_canary_job);
     }
   }
 
   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)
             << " job. The time delta(ms) is "
             << length.InMilliseconds();
 
   // This will reset the had_nudge variable as well.
   wait_interval_.reset(new WaitInterval(WaitInterval::EXPONENTIAL_BACKOFF,
                                         length));
   if (old_job.purpose == SyncSessionJob::CONFIGURATION) {
@@ skipping 226 matching lines @@
 
 #undef SDVLOG_LOC
 
 #undef SDVLOG
 
 #undef SLOG
 
 #undef ENUM_CASE
 
 }  // namespace syncer