Fix more GCC 4.3 warnings.

webkit/tools/npapi_layout_test_plugin/PluginObject.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 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 539 matching lines @@
 
     NPString pathString = NPVARIANT_TO_STRING(args[2]);
     char* path = toCString(pathString);
 
     NPString contentsString = NPVARIANT_TO_STRING(args[3]);
 
     FILE* tempFile = fopen(path, "w");
     if (!tempFile)
         return false;
 
-    fwrite(contentsString.UTF8Characters, contentsString.UTF8Length, 1, tempFile);
+    int written = fwrite(contentsString.UTF8Characters, contentsString.UTF8Length, 1, tempFile);

[agl, 2009/02/22 01:25:35]

size_t, not int

+    DCHECK(written == 1);
     fclose(tempFile);
 
     NPError error = browser->posturl(obj->npp, url, target, pathString.UTF8Length, path, TRUE);
 
     free(path);
     free(target);
     free(url);
 
     BOOLEAN_TO_NPVARIANT(error == NPERR_NO_ERROR, *result);
     return true;
@@ skipping 264 matching lines @@
             object->firstUrl = strdup(url);
         if (headers)
             object->firstHeaders = strdup(headers);
     } else {
         free(object->lastUrl);
         free(object->lastHeaders);
         object->lastUrl = (url ? strdup(url) : NULL);
         object->lastHeaders = (headers ? strdup(headers) : NULL);
     }
 }