Move chrome.fileSystem implementation to //extensions

apps/saved_files_service_delegate_impl.cc

+// 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.
+
+#include "apps/saved_files_service_delegate_impl.h"
+
+#include "apps/saved_files_service.h"
+#include "content/public/browser/browser_context.h"
+
+namespace apps {
+
+SavedFilesServiceDelegateImpl::SavedFilesServiceDelegateImpl(
+    content::BrowserContext* browser_context) {
+  saved_files_service_ = SavedFilesService::Get(browser_context);
+}
+
+SavedFilesServiceDelegateImpl::~SavedFilesServiceDelegateImpl() {}
+
+bool SavedFilesServiceDelegateImpl::IsRegistered(
+    const std::string& extension_id,
+    const std::string& id) {
+  return saved_files_service_->IsRegistered(extension_id, id);
+}
+
+void SavedFilesServiceDelegateImpl::RegisterFileEntry(
+    const std::string& extension_id,
+    const File& file) {
+  saved_files_service_->RegisterFileEntry(extension_id, file.id, file.path,
+                                          file.is_directory);
+}
+
+bool SavedFilesServiceDelegateImpl::GetRegisteredFileInfo(
+    const std::string& extension_id,
+    const std::string& id,
+    File* file) {
+  const SavedFileEntry* entry =
+      saved_files_service_->GetFileEntry(extension_id, id);
+  if (!entry)
+    return false;
+  file->id = entry->id;
+  file->path = entry->path;
+  file->is_directory = entry->is_directory;
+  return true;
+}
+
+void SavedFilesServiceDelegateImpl::EnqueueFileEntry(
+    const std::string& extension_id,
+    const std::string& id) {
+  saved_files_service_->EnqueueFileEntry(extension_id, id);
+}
+
+}  // namespace apps