sync: Move migration signal out of snapshot

sync/engine/syncer_unittest.cc

 // 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.
 //
 // Syncer unit tests. Unfortunately a lot of these tests
 // are outdated and need to be reworked and updated.
 
 #include <algorithm>
 #include <limits>
 #include <list>
@@ skipping 133 matching lines @@
   }
   virtual void OnReceivedSessionsCommitDelay(
       const base::TimeDelta& new_delay) OVERRIDE {
     last_sessions_commit_delay_seconds_ = new_delay;
   }
   virtual void OnReceivedClientInvalidationHintBufferSize(
       int size) OVERRIDE {
     last_client_invalidation_hint_buffer_size_ = size;
   }
   virtual void OnReceivedGuRetryDelay(const base::TimeDelta& delay) OVERRIDE {}
+  virtual void OnReceivedMigrationRequest(ModelTypeSet types) OVERRIDE {}
   virtual void OnSyncProtocolError(const SyncProtocolError& error) OVERRIDE {}
 
   void GetModelSafeRoutingInfo(ModelSafeRoutingInfo* out) {
     // We're just testing the sync engine here, so we shunt everything to
     // the SyncerThread.  Datatypes which aren't enabled aren't in the map.
     for (ModelTypeSet::Iterator it = enabled_datatypes_.First();
          it.Good(); it.Inc()) {
       (*out)[it.Get()] = GROUP_PASSIVE;
     }
   }
 
   virtual void OnSyncCycleEvent(const SyncCycleEvent& event) OVERRIDE {
     DVLOG(1) << "HandleSyncEngineEvent in unittest " << event.what_happened;
     // we only test for entry-specific events, not status changed ones.
     switch (event.what_happened) {
       case SyncCycleEvent::SYNC_CYCLE_BEGIN: // Fall through.
       case SyncCycleEvent::STATUS_CHANGED:
       case SyncCycleEvent::SYNC_CYCLE_ENDED:
         return;
       default:
         CHECK(false) << "Handling unknown error type in unit tests!!";
     }
     saw_syncer_event_ = true;
   }
 
   virtual void OnActionableError(const SyncProtocolError& error) OVERRIDE {}
   virtual void OnRetryTimeChanged(base::Time retry_time) OVERRIDE {}
   virtual void OnThrottledTypesChanged(ModelTypeSet throttled_types) OVERRIDE {}
+  virtual void OnMigrationRequested(ModelTypeSet types) OVERRIDE {}
 
   void ResetSession() {
     session_.reset(SyncSession::Build(context_.get(), this));
   }
 
   void SyncShareNudge() {
     ResetSession();
 
     // Pretend we've seen a local change, to make the nudge_tracker look normal.
     nudge_tracker_.RecordLocalChange(ModelTypeSet(BOOKMARKS));
@@ skipping 4611 matching lines @@
     EXPECT_EQ("xyz", final_monitor_records["xyz"].extension_id);
     EXPECT_EQ(2049U, final_monitor_records["ABC"].bookmark_write_count);
     EXPECT_EQ(4U,    final_monitor_records["xyz"].bookmark_write_count);
   } else {
     EXPECT_TRUE(final_monitor_records.empty())
         << "Should not restore records after successful bookmark commit.";
   }
 }
 
 }  // namespace syncer