sync: Buffer Protocol Events for about:sync page

sync/internal_api/sync_manager_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/internal_api/sync_manager_impl.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 925 matching lines @@
 
 void SyncManagerImpl::OnThrottledTypesChanged(ModelTypeSet) {}
 
 void SyncManagerImpl::OnMigrationRequested(ModelTypeSet types) {
   FOR_EACH_OBSERVER(
       SyncManager::Observer, observers_,
       OnMigrationRequested(types));
 }
 
 void SyncManagerImpl::OnProtocolEvent(const ProtocolEvent& event) {
+  protocol_event_buffer_.RecordProtocolEvent(event);
   FOR_EACH_OBSERVER(SyncManager::Observer, observers_,
                     OnProtocolEvent(event));
 }
 
 void SyncManagerImpl::SetJsEventHandler(
     const WeakHandle<JsEventHandler>& event_handler) {
   js_sync_manager_observer_.SetJsEventHandler(event_handler);
   js_mutation_event_observer_.SetJsEventHandler(event_handler);
   js_sync_encryption_handler_observer_.SetJsEventHandler(event_handler);
 }
@@ skipping 190 matching lines @@
 
 bool SyncManagerImpl::HasUnsyncedItems() {
   ReadTransaction trans(FROM_HERE, GetUserShare());
   return (trans.GetWrappedTrans()->directory()->unsynced_entity_count() != 0);
 }
 
 SyncEncryptionHandler* SyncManagerImpl::GetEncryptionHandler() {
   return sync_encryption_handler_.get();
 }
 
+ScopedVector<syncer::ProtocolEvent>
+    SyncManagerImpl::GetBufferedProtocolEvents() {
+  return protocol_event_buffer_.GetBufferedProtocolEvents();
+}
+
 // static.
 int SyncManagerImpl::GetDefaultNudgeDelay() {
   return kDefaultNudgeDelayMilliseconds;
 }
 
 // static.
 int SyncManagerImpl::GetPreferencesNudgeDelay() {
   return kPreferencesNudgeDelayMilliseconds;
 }
 
 }  // namespace syncer