Move chrome.fileSystem implementation to //extensions

apps/saved_files_service_delegate_impl.h

+// Copyright 2017 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.
+
+#ifndef APPS_SAVED_FILES_SERVICE_DELEGATE_IMPL_H_
+#define APPS_SAVED_FILES_SERVICE_DELEGATE_IMPL_H_
+
+#include "extensions/browser/api/file_system/saved_files_service_delegate.h"
+
+#include <string>
+
+#include "base/macros.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace apps {
+
+class SavedFilesService;
+
+// Concrete implementation that just forwards calls to the SavedFilesService.
+class SavedFilesServiceDelegateImpl
+    : public extensions::file_system_api::SavedFilesServiceDelegate {
+ public:
+  SavedFilesServiceDelegateImpl(content::BrowserContext* browser_context);
+  ~SavedFilesServiceDelegateImpl() override;
+
+  // extensions::file_system_api::SavedFileServiceDelegate:
+  bool IsRegistered(const std::string& extension_id,
+                    const std::string& id) override;
+  void RegisterFileEntry(const std::string& extension_id,
+                         const File& file) override;
+  bool GetRegisteredFileInfo(const std::string& extension_id,
+                             const std::string& id,
+                             File* file) override;
+  void EnqueueFileEntry(const std::string& extension_id,
+                        const std::string& id) override;
+
+ private:
+  SavedFilesService* saved_files_service_;
+
+  DISALLOW_COPY_AND_ASSIGN(SavedFilesServiceDelegateImpl);
+};
+
+}  // namespace apps
+
+#endif  // APPS_SAVED_FILES_SERVICE_DELEGATE_IMPL_H_