1 files changed, 28 insertions, 0 deletions
diff --git a/chromium/content/shell/renderer/shell_render_frame_observer.h b/chromium/content/shell/renderer/shell_render_frame_observer.h
new file mode 100644
index 00000000000..2f40722cf4b
--- /dev/null
+++ b/chromium/content/shell/renderer/shell_render_frame_observer.h
@@ -0,0 +1,28 @@
+// Copyright 2020 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 CONTENT_SHELL_RENDERER_SHELL_RENDER_FRAME_OBSERVER_H_
+#define CONTENT_SHELL_RENDERER_SHELL_RENDER_FRAME_OBSERVER_H_
+
+#include "content/public/renderer/render_frame_observer.h"
+
+namespace content {
+
+class ShellRenderFrameObserver : public RenderFrameObserver {
+ public:
+  explicit ShellRenderFrameObserver(RenderFrame* frame);
+  ~ShellRenderFrameObserver() override;
+
+  ShellRenderFrameObserver(const ShellRenderFrameObserver&) = delete;
+  ShellRenderFrameObserver& operator=(const ShellRenderFrameObserver&) = delete;
+
+ private:
+  // RenderFrameObserver implementation.
+  void DidClearWindowObject() override;
+  void OnDestruct() override;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_SHELL_RENDERER_SHELL_RENDER_FRAME_OBSERVER_H_