Offer user to send feedback from profile error dialog

sql/connection.h

Index: sql/connection.h
diff --git a/sql/connection.h b/sql/connection.h
index 12e7041c9fd2fa10f7bec8c04b182c14c5d302ad..5b8d39964ab2aa4e96312b790606c7b0bd0c8b29 100644
--- a/sql/connection.h
+++ b/sql/connection.h
@@ -239,6 +239,10 @@ class SQL_EXPORT Connection {
   // 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