Add new E2E sync multi profiles tests. This should not affect any existing

chrome/browser/sync/test/integration/p2p_sync_refresher.cc

+// Copyright 2014 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/test/integration/p2p_sync_refresher.h"
+
+#include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/sync/profile_sync_service.h"
+#include "chrome/browser/sync/test/integration/sync_datatype_helper.h"
+#include "chrome/browser/sync/test/integration/sync_test.h"
+#include "content/public/browser/notification_service.h"
+#include "sync/internal_api/public/sessions/sync_session_snapshot.h"
+
+P2PSyncRefresher::P2PSyncRefresher(ProfileSyncService* sync_service)
+    : sync_service_(sync_service){
+  sync_service_->AddObserver(this);
+}
+
+P2PSyncRefresher::~P2PSyncRefresher() {
+  sync_service_->RemoveObserver(this);
+}
+
+void P2PSyncRefresher::OnStateChanged() {}
+
+void P2PSyncRefresher::OnSyncCycleCompleted() {
+  const syncer::sessions::SyncSessionSnapshot& snap =
+      sync_service_->GetLastSessionSnapshot();
+  bool is_notifiable_commit =
+      (snap.model_neutral_state().num_successful_commits > 0);
+  if (is_notifiable_commit) {
+    syncer::ModelTypeSet model_types =
+        snap.model_neutral_state().commit_request_types;
+    SyncTest* test = sync_datatype_helper::test();
+    for (int i = 0; i < test->num_clients(); ++i) {
+      if (sync_service_->profile() != test->GetProfile(i)) {
+        content::NotificationService::current()->Notify(
+            chrome::NOTIFICATION_SYNC_REFRESH_LOCAL,
+            content::Source<Profile>(test->GetProfile(i)),
+            content::Details<const syncer::ModelTypeSet>(&model_types));
+      }
+    }
+  }
+}