Componentize sad_tab

components/sad_tab/sad_tab_client.h

Index: components/sad_tab/sad_tab_client.h
diff --git a/components/sad_tab/sad_tab_client.h b/components/sad_tab/sad_tab_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..691405f5d9a554b6b237548ab040e4acd60f9c19
--- /dev/null
+++ b/components/sad_tab/sad_tab_client.h
@@ -0,0 +1,40 @@
+// 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 COMPONENTS_SAD_TAB_SAD_TAB_CLIENT_H_
+#define COMPONENTS_SAD_TAB_SAD_TAB_CLIENT_H_
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "components/sad_tab/sad_tab_types.h"
+
+namespace content {
+class WebContents;
+}
+
+namespace sad_tab {
+
+class SadTab;
+
+class SadTabClient {
+ public:
+  virtual ~SadTabClient() {}
+
+  // Creates a SadTab instance.
+  virtual scoped_ptr<SadTab> CreateSadTab(content::WebContents* web_contents,
+                                          SadTabKind kind) = 0;
+
+  // Returns true if the browser is in shutdown.
+  virtual bool IsInBrowserShutdown() = 0;
+
+  // Shows the feedback page.
+  virtual void ShowFeedbackPage(content::WebContents* web_contents,
+                                const std::string& description_template,
+                                const std::string& category_tag) = 0;
+};
+
+}  // namespace sad_tab
+
+#endif  // COMPONENTS_SAD_TAB_SAD_TAB_CLIENT_H_