Chrome Frame turndown prompt.

chrome_frame/turndown_prompt/turndown_prompt.h

+// Copyright 2013 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 CHROME_FRAME_TURNDOWN_PROMPT_TURNDOWN_PROMPT_H_
+#define CHROME_FRAME_TURNDOWN_PROMPT_TURNDOWN_PROMPT_H_
+
+#include <atlbase.h>
+#include <atlcom.h>
+
+interface IWebBrowser2;
+
+// Integrates the Turndown prompt functionality with a specified IWebBrowser2
+// instance.  Displays prompts informing the user that Chrome Frame is being
+// turned down.
+namespace turndown_prompt {
+
+// Returns true if the Turndown prompt is suppressed by group policy, either
+// implicitly by disabling updates to Chrome Frame, or explicitly by the
+// SuppressChromeFrameTurndownPrompt GPO.
+bool IsPromptSuppressed();
+
+// Configures |web_browser| for the turndown prompt if the prompt has not been
+// suppressed.
+void Configure(IWebBrowser2* web_browser);
+
+};  // namespace turndown_prompt
+
+#endif  // CHROME_FRAME_TURNDOWN_PROMPT_TURNDOWN_PROMPT_H_