Add 'Dump Database' tab to syncfs-internals (only for v2 for now)

chrome/browser/ui/webui/sync_file_system_internals/dump_database_handler.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_BROWSER_UI_WEBUI_SYNC_FILE_SYSTEM_INTERNALS_DUMP_DATABASE_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_SYNC_FILE_SYSTEM_INTERNALS_DUMP_DATABASE_HANDLER_H_
+
+#include "base/compiler_specific.h"
+#include "content/public/browser/web_ui_message_handler.h"
+
+class Profile;
+
+namespace syncfs_internals {
+
+class DumpDatabaseHandler : public content::WebUIMessageHandler {
+ public:
+  explicit DumpDatabaseHandler(Profile* profile);
+  virtual ~DumpDatabaseHandler();
+
+  // WebUIMessageHandler implementation.
+  virtual void RegisterMessages() OVERRIDE;
+
+ private:
+  void GetDatabaseDump(const base::ListValue* args);
+
+  Profile* profile_;
+
+  DISALLOW_COPY_AND_ASSIGN(DumpDatabaseHandler);
+};
+
+}  // namespace syncfs_internals
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SYNC_FILE_SYSTEM_INTERNALS_DUMP_DATABASE_HANDLER_H_