Offer user to send feedback from profile error dialog

sql/connection.h

 // Copyright (c) 2012 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 SQL_CONNECTION_H_
 #define SQL_CONNECTION_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <map>
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   // results into |messages|.  Returns the success of running the
   // statement - per the SQLite documentation, if no errors are found the
   // call should succeed, and a single value "ok" should be in messages.
   bool FullIntegrityCheck(std::vector<std::string>* messages);
 
   // Runs "PRAGMA quick_check" and, unlike the FullIntegrityCheck method,
   // interprets the results returning true if the the statement executes
   // without error and results in a single "ok" value.
   bool QuickIntegrityCheck() WARN_UNUSED_RESULT;
 
+  // Meant to be called from a client error callback so that it's able to
+  // get diagnostic information about the database.
+  std::string GetDiagnosticInfo(int extended_error, Statement* statement);
+
   // Initialization ------------------------------------------------------------
 
   // Initializes the SQL connection for the given file, returning true if the
   // file could be opened. You can call this or OpenInMemory.
   bool Open(const base::FilePath& path) WARN_UNUSED_RESULT;
 
   // Initializes the SQL connection for a temporary in-memory database. There
   // will be no associated file on disk, and the initial database will be
   // empty. You can call this or Open.
   bool OpenInMemory() WARN_UNUSED_RESULT;
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   // Stores the dump provider object when db is open.
   std::unique_ptr<ConnectionMemoryDumpProvider> memory_dump_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(Connection);
 };
 
 }  // namespace sql
 
 #endif  // SQL_CONNECTION_H_