sync: Remove SyncManager::TestingMode in favour of InternalComponentsFactory.

sync/internal_api/public/internal_components_factory.h

Index: sync/internal_api/public/internal_components_factory.h
diff --git a/sync/internal_api/public/internal_components_factory.h b/sync/internal_api/public/internal_components_factory.h
new file mode 100644
index 0000000000000000000000000000000000000000..9ef604b8189585059137fa178bb1f3b628cc09a4
--- /dev/null
+++ b/sync/internal_api/public/internal_components_factory.h
@@ -0,0 +1,65 @@
+// 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.
+//
+// InternalComponentsFactory exists so that tests can override creation of
+// components used by the SyncManager that are not exposed across the sync
+// API boundary.
+
+#ifndef SYNC_INTERNAL_API_PUBLIC_INTERNAL_COMPONENTS_FACTORY_H_
+#define SYNC_INTERNAL_API_PUBLIC_INTERNAL_COMPONENTS_FACTORY_H_
+
+#include <string>
+#include <vector>
+
+#include "base/file_path.h"
+#include "sync/internal_api/public/engine/model_safe_worker.h"
+
+namespace syncer {
+
+class ExtensionsActivityMonitor;
+class ServerConnectionManager;
+class SyncEngineEventListener;
+class SyncScheduler;
+class TrafficRecorder;
+
+class ThrottledDataTypeTracker;
+
+namespace sessions {
+class DebugInfoGetter;
+class SyncSessionContext;
+}
+
+namespace syncable {
+class Directory;
+class DirectoryBackingStore;
+}
+
+class InternalComponentsFactory {
+ public:
+  virtual ~InternalComponentsFactory() {}
+
+  virtual scoped_ptr<SyncScheduler> BuildScheduler(
+      const std::string& name,
+      sessions::SyncSessionContext* context) = 0;
+
+  virtual scoped_ptr<sessions::SyncSessionContext> BuildContext(
+      ServerConnectionManager* connection_manager,
+      syncable::Directory* directory,
+      const ModelSafeRoutingInfo& routing_info,
+      const std::vector<ModelSafeWorker*> workers,
+      ExtensionsActivityMonitor* monitor,
+      ThrottledDataTypeTracker* throttled_data_type_tracker,
+      const std::vector<SyncEngineEventListener*>& listeners,
+      sessions::DebugInfoGetter* debug_info_getter,
+      syncer::TrafficRecorder* traffic_recorder) = 0;
+
+  virtual scoped_ptr<syncable::DirectoryBackingStore>
+  BuildDirectoryBackingStore(
+      const std::string& dir_name,
+      const FilePath& backing_filepath) = 0;
+};
+
+}  // namespace syncer
+
+#endif  // SYNC_INTERNAL_API_PUBLIC_INTERNAL_COMPONENTS_FACTORY_H_