Experimental functionize patch

sync/engine/sync_scheduler_impl.h

 // Copyright 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.
 
 #ifndef SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 #define SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 
 #include <map>
 #include <string>
 
@@ skipping 112 matching lines @@
                            SaveConfigurationWhileThrottled);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerWhiteboxTest,
                            SaveNudgeWhileThrottled);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerWhiteboxTest,
                            ContinueCanaryJobConfig);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerTest, TransientPollFailure);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerTest,
                            ServerConnectionChangeDuringBackoff);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerTest,
                            ConnectionChangeCanaryPreemptedByNudge);
+  FRIEND_TEST_ALL_PREFIXES(BackoffTriggersSyncSchedulerTest,
+                           FailGetEncryptionKey);
 
   struct SYNC_EXPORT_PRIVATE WaitInterval {
     enum Mode {
       // Uninitialized state, should not be set in practice.
       UNKNOWN = -1,
       // We enter a series of increasingly longer WaitIntervals if we experience
       // repeated transient failures.  We retry at the end of each interval.
       EXPONENTIAL_BACKOFF,
       // A server-initiated throttled interval.  We do not allow any syncing
       // during such an interval.
@@ skipping 75 matching lines @@
 
   // Attempts to exit EXPONENTIAL_BACKOFF by calling TryCanaryJob().
   void ExponentialBackoffRetry();
 
   // Called when the root cause of the current connection error is fixed.
   void OnServerConnectionErrorFixed();
 
   // Creates a session for a poll and performs the sync.
   void PollTimerCallback();
 
+  // Returns the set of types that are enabled and not currently throttled.
+  ModelTypeSet GetEnabledAndUnthrottledTypes();
+
   // Called as we are started to broadcast an initial session snapshot
   // containing data like initial_sync_ended.  Important when the client starts
   // up and does not need to perform an initial sync.
   void SendInitialSnapshot();
 
   // This is used for histogramming and analysis of ScheduleNudge* APIs.
   // SyncScheduler is the ultimate choke-point for all such invocations (with
   // and without InvalidationState variants, all NudgeSources, etc) and as such
   // is the most flexible place to do this bookkeeping.
   void UpdateNudgeTimeRecords(ModelTypeSet types);
@@ skipping 67 matching lines @@
   // take place during a sync cycle. We call this out because such violations
   // could result in tight sync loops hitting sync servers.
   bool no_scheduling_allowed_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSchedulerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_