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

webkit/browser/fileapi/file_system_file_util.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 WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/platform_file.h"
@@ skipping 41 matching lines @@
     virtual base::FilePath Next() OVERRIDE;
     virtual int64 Size() OVERRIDE;
     virtual base::Time LastModifiedTime() OVERRIDE;
     virtual bool IsDirectory() OVERRIDE;
   };
 
   virtual ~FileSystemFileUtil() {}
 
   // Creates or opens a file with the given flags.
   // See header comments for AsyncFileUtil::CreateOrOpen() for more details.
-  // This is used only by Pepper/NaCL File API.
+  // This is used only by Pepper/NaCl File API.
   virtual base::PlatformFileError CreateOrOpen(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       int file_flags,
       base::PlatformFile* file_handle,
       bool* created) = 0;
 
   // Closes the given file handle.
-  // This is used only for Pepper/NaCL File API.
+  // This is used only for Pepper/NaCl File API.
   virtual base::PlatformFileError Close(
       FileSystemOperationContext* context,
       base::PlatformFile file) = 0;
 
   // Ensures that the given |url| exist.  This creates a empty new file
   // at |url| if the |url| does not exist.
   // See header comments for AsyncFileUtil::EnsureFileExists() for more details.
   virtual base::PlatformFileError EnsureFileExists(
       FileSystemOperationContext* context,
       const FileSystemURL& url, bool* created) = 0;
@@ skipping 103 matching lines @@
  protected:
   FileSystemFileUtil() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_