Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/wtf/DataLog.cpp

 /*
  * Copyright (C) 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 41 matching lines @@
 #ifdef DATA_LOG_FILENAME
     const char* filename = DATA_LOG_FILENAME;
 #else
     const char* filename = getenv("WTF_DATA_LOG_FILENAME");
 #endif
     char actualFilename[1024];
 
     snprintf(actualFilename, sizeof(actualFilename), "%s.%d.txt", filename, getpid());
 
     if (filename) {
-        file = FilePrintStream::open(actualFilename, "w").release();
+        file = FilePrintStream::open(actualFilename, "w").leakPtr();
         if (!file)
             fprintf(stderr, "Warning: Could not open log file %s for writing.\n", actualFilename);
     }
 #endif // DATA_LOG_TO_FILE
     if (!file)
         file = new FilePrintStream(stderr, FilePrintStream::Borrow);
 
     setvbuf(file->file(), 0, _IONBF, 0); // Prefer unbuffered output, so that we get a full log upon crash or deadlock.
 }
 
@@ skipping 21 matching lines @@
 void dataLogF(const char* format, ...)
 {
     va_list argList;
     va_start(argList, format);
     dataLogFV(format, argList);
     va_end(argList);
 }
 
 } // namespace WTF