Allow assertions to be enabled in Blink Release builds.

Source/modules/filesystem/FileWriterSync.cpp

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 74 matching lines @@
     }
     if (offset < position())
         setPosition(offset);
     setLength(offset);
 }
 
 void FileWriterSync::didWrite(long long bytes, bool complete)
 {
     ASSERT(m_error == FileError::OK);
     ASSERT(!m_complete);
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     m_complete = complete;
 #else
     ASSERT_UNUSED(complete, complete);
 #endif
 }
 
 void FileWriterSync::didTruncate()
 {
     ASSERT(m_error == FileError::OK);
     ASSERT(!m_complete);
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     m_complete = true;
 #endif
 }
 
 void FileWriterSync::didFail(blink::WebFileError error)
 {
     ASSERT(m_error == FileError::OK);
     m_error = static_cast<FileError::ErrorCode>(error);
     ASSERT(!m_complete);
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     m_complete = true;
 #endif
 }
 
 FileWriterSync::FileWriterSync()
     : m_error(FileError::OK)
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     , m_complete(true)
 #endif
 {
     ScriptWrappable::init(this);
 }
 
 void FileWriterSync::prepareForWrite()
 {
     ASSERT(m_complete);
     m_error = FileError::OK;
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     m_complete = false;
 #endif
 }
 
 FileWriterSync::~FileWriterSync()
 {
 }
 
 
 } // namespace WebCore