feat: preliminary support for //extensions (#17440)

shell/browser/extensions/atom_display_info_provider.h

@@ -0,0 +1,23 @@
+// Copyright 2014 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 SHELL_BROWSER_EXTENSIONS_ATOM_DISPLAY_INFO_PROVIDER_H_
+#define SHELL_BROWSER_EXTENSIONS_ATOM_DISPLAY_INFO_PROVIDER_H_
+
+#include "base/macros.h"
+#include "extensions/browser/api/system_display/display_info_provider.h"
+
+namespace extensions {
+
+class AtomDisplayInfoProvider : public DisplayInfoProvider {
+ public:
+  AtomDisplayInfoProvider();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AtomDisplayInfoProvider);
+};
+
+}  // namespace extensions
+
+#endif  // SHELL_BROWSER_EXTENSIONS_ATOM_DISPLAY_INFO_PROVIDER_H_