Fix spelling of "NaCl" in various places: "NaCL" is the wrong capitalisation

content/common/sandbox_mac_unittest_helper.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 CONTENT_COMMON_SANDBOX_MAC_UNITTEST_HELPER_H_
 #define CONTENT_COMMON_SANDBOX_MAC_UNITTEST_HELPER_H_
 
 #include "base/test/multiprocess_test.h"
 #include "content/common/sandbox_mac.h"
 
@@ skipping 42 matching lines @@
                         const char* test_name,
                         const char* test_data);
 
   // Runs the test specified by |test_name| in all the different sandbox types
   // known to content, one by one.
   // Returns true if the test passes, false if either of the functions in
   // the corresponding MacSandboxTestCase return false in any of the spawned
   // processes.
   //
   // DANGER DANGER DANGER:
-  // Additional sandbox types defined by the embedder (e.g. the NaCL sandbox)
+  // Additional sandbox types defined by the embedder (e.g. the NaCl sandbox)
   // won't be covered by these tests.
   bool RunTestInAllSandboxTypes(const char* test_name,
                                 const char* test_data);
 };
 
 // Class to ease writing test cases that run inside the OS X sandbox.
 // This class is instantiated in a subprocess, and allows you to run test code
 // at various stages of execution.
 // Note that you must register the subclass you create with the
 // REGISTER_SANDBOX_TEST_CASE so it's visible to the test driver.
@@ skipping 37 matching lines @@
   namespace { \
     content::internal::RegisterSandboxTest<class_name> \
       register_test##class_name(#class_name); \
   }  // namespace
 
 }  // namespace internal
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SANDBOX_MAC_UNITTEST_HELPER_H_