[Sync] Componentize synced_tab_delegate

components/sync_sessions/fake_sync_sessions_client.cc

+// Copyright 2015 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 "components/sync_sessions/fake_sync_sessions_client.h"
+
+#include "url/gurl.h"
+
+namespace sync_sessions {
+
+FakeSyncSessionsClient::FakeSyncSessionsClient() {}
+FakeSyncSessionsClient::~FakeSyncSessionsClient() {}
+
+bool FakeSyncSessionsClient::ShouldSyncURL(const GURL& url) const {
+  return url.is_valid();
+}
+
+browser_sync::SyncedWindowDelegatesGetter*
+FakeSyncSessionsClient::GetSyncedWindowDelegatesGetter() {
+  return nullptr;
+}
+
+}  // namespace sync_sessions