fix spelling of comments

chrome/browser/sync/glue/autofill_model_associator.cc

 // Copyright (c) 2011 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 "chrome/browser/sync/glue/autofill_model_associator.h"
 
 #include <functional>
 #include <vector>
 
 #include "base/string_number_conversions.h"
@@ skipping 160 matching lines @@
         &bundle,
         profiles.get())) {
       return false;
     }
   }
 
   // Since we're on the DB thread, we don't have to worry about updating
   // the autofill database after closing the write transaction, since
   // this is the only thread that writes to the database.  We also don't have
   // to worry about the sync model getting out of sync, because changes are
-  // propogated to the ChangeProcessor on this thread.
+  // propagated to the ChangeProcessor on this thread.
   if (!SaveChangesToWebData(bundle)) {
     LOG(ERROR) << "Failed to update autofill entries.";
     return false;
   }
 
   if (sync_service_->GetAutofillMigrationState() !=
       syncable::MIGRATED) {
     syncable::AutofillMigrationDebugInfo debug_info;
     debug_info.autofill_entries_added_during_migration =
         number_of_entries_created_;
@@ skipping 377 matching lines @@
       sync_service_->SetAutofillMigrationState(syncable::MIGRATED);
 
       VLOG(1) << "[AUTOFILL MIGRATION]"
               << "Current autofill migration state is migrated.";
   }
 
   return false;
 }
 
 }  // namespace browser_sync