mac: Provide ViewsDelegate

atom/browser/ui/cocoa/views_delegate_mac.h

@@ -0,0 +1,30 @@
+// 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_VIEWS_DELEGATE_MAC_H_
+#define ATOM_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
+
+#include "ui/views/views_delegate.h"
+
+namespace atom {
+
+class ViewsDelegateMac : public views::ViewsDelegate {
+ public:
+  ViewsDelegateMac();
+  ~ViewsDelegateMac() override;
+
+  // ViewsDelegate:
+  void OnBeforeWidgetInit(
+      views::Widget::InitParams* params,
+      views::internal::NativeWidgetDelegate* delegate) override;
+  ui::ContextFactory* GetContextFactory() override;
+  ui::ContextFactoryPrivate* GetContextFactoryPrivate() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ViewsDelegateMac);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_