Spell success correctly.

courgette/courgette_flow.h

 // Copyright 2017 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 COURGETTE_COURGETTE_FLOW_H_
 #define COURGETTE_COURGETTE_FLOW_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 106 matching lines @@
 
  private:
   // Utilities to process return values from Courgette functions, and assign
   // |status_| and |message_|. Usage:
   //   if (!check(some_courgette_function(param1, ...)))
   //     setMessage("format string %s...", value1, ...);
 
   // Reassigns |status_|, and returns true if |C_OK|.
   bool check(Status new_status);
 
-  // check() alternative for functions that return true on succes. On failure
+  // check() alternative for functions that return true on success. On failure
   // assigns |status_| to |failure_mode|.
   bool check(bool success, Status failure_mode);
 
   void setMessage(const char* format, ...);
 
   Status status_ = C_OK;
   std::string message_;
   Data data_only_;
   Data data_old_;
   Data data_new_;
 
   DISALLOW_COPY_AND_ASSIGN(CourgetteFlow);
 };
 
 }  // namespace courgette
 
 #endif  // COURGETTE_COURGETTE_FLOW_H_