refactor: rename the atom directory to shell

shell/browser/api/save_page_handler.h

@@ -0,0 +1,57 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_API_SAVE_PAGE_HANDLER_H_
+#define ATOM_BROWSER_API_SAVE_PAGE_HANDLER_H_
+
+#include <string>
+
+#include "atom/common/promise_util.h"
+#include "components/download/public/common/download_item.h"
+#include "content/public/browser/download_manager.h"
+#include "content/public/browser/save_page_type.h"
+#include "v8/include/v8.h"
+
+namespace base {
+class FilePath;
+}
+
+namespace content {
+class WebContents;
+}
+
+namespace atom {
+
+namespace api {
+
+// A self-destroyed class for handling save page request.
+class SavePageHandler : public content::DownloadManager::Observer,
+                        public download::DownloadItem::Observer {
+ public:
+  SavePageHandler(content::WebContents* web_contents,
+                  atom::util::Promise promise);
+  ~SavePageHandler() override;
+
+  bool Handle(const base::FilePath& full_path,
+              const content::SavePageType& save_type);
+
+ private:
+  void Destroy(download::DownloadItem* item);
+
+  // content::DownloadManager::Observer:
+  void OnDownloadCreated(content::DownloadManager* manager,
+                         download::DownloadItem* item) override;
+
+  // download::DownloadItem::Observer:
+  void OnDownloadUpdated(download::DownloadItem* item) override;
+
+  content::WebContents* web_contents_;  // weak
+  atom::util::Promise promise_;
+};
+
+}  // namespace api
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_API_SAVE_PAGE_HANDLER_H_