Merge 52833 - Public GIF decoder should stop decoding when allocation fails...

WebCore/platform/image-decoders/gif/GIFImageReader.h

 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
@@ skipping 190 matching lines @@
         delete []global_colormap;
         global_colormap = 0;
         delete frame_reader;
         frame_reader = 0;
     }
 
     bool read(const unsigned char * buf, unsigned int numbytes, 
               WebCore::GIFImageDecoder::GIFQuery query = WebCore::GIFImageDecoder::GIFFullQuery, unsigned haltAtFrame = -1);
 
 private:
-    void output_row();
-    int do_lzw(const unsigned char *q);
+    bool output_row();
+    bool do_lzw(const unsigned char *q);
 };
 
 #endif