refactor: rename the atom directory to shell

shell/browser/ui/cocoa/delayed_native_view_host.h

@@ -0,0 +1,31 @@
+// Copyright (c) 2018 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
+#define ATOM_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
+
+#include "ui/views/controls/native/native_view_host.h"
+
+namespace atom {
+
+// Automatically attach the native view after the NativeViewHost is attached to
+// a widget. (Attaching it directly would cause crash.)
+class DelayedNativeViewHost : public views::NativeViewHost {
+ public:
+  explicit DelayedNativeViewHost(gfx::NativeView native_view);
+  ~DelayedNativeViewHost() override;
+
+  // views::View:
+  void ViewHierarchyChanged(
+      const views::ViewHierarchyChangedDetails& details) override;
+
+ private:
+  gfx::NativeView native_view_;
+
+  DISALLOW_COPY_AND_ASSIGN(DelayedNativeViewHost);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_