refactor: rename the atom directory to shell

shell/browser/ui/cocoa/views_delegate_mac.mm

@@ -0,0 +1,43 @@
+// Copyright (c) 2018 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/ui/cocoa/views_delegate_mac.h"
+
+#include "content/public/browser/context_factory.h"
+#include "ui/views/widget/native_widget_mac.h"
+
+namespace atom {
+
+ViewsDelegateMac::ViewsDelegateMac() {}
+
+ViewsDelegateMac::~ViewsDelegateMac() {}
+
+void ViewsDelegateMac::OnBeforeWidgetInit(
+    views::Widget::InitParams* params,
+    views::internal::NativeWidgetDelegate* delegate) {
+  // If we already have a native_widget, we don't have to try to come
+  // up with one.
+  if (params->native_widget)
+    return;
+
+  if (!native_widget_factory().is_null()) {
+    params->native_widget = native_widget_factory().Run(*params, delegate);
+    if (params->native_widget)
+      return;
+  }
+
+  // Setting null here causes Widget to create the default NativeWidget
+  // implementation.
+  params->native_widget = nullptr;
+}
+
+ui::ContextFactory* ViewsDelegateMac::GetContextFactory() {
+  return content::GetContextFactory();
+}
+
+ui::ContextFactoryPrivate* ViewsDelegateMac::GetContextFactoryPrivate() {
+  return content::GetContextFactoryPrivate();
+}
+
+}  // namespace atom