1 files changed, 5 insertions, 0 deletions
diff --git a/WebCore/platform/image-decoders/png/PNGImageDecoder.h b/WebCore/platform/image-decoders/png/PNGImageDecoder.h
index 287a794..145fc4d 100644
--- a/WebCore/platform/image-decoders/png/PNGImageDecoder.h
+++ b/WebCore/platform/image-decoders/png/PNGImageDecoder.h
@@ -44,6 +44,10 @@ namespace WebCore {
         virtual bool isSizeAvailable();
         virtual bool setSize(unsigned width, unsigned height);
         virtual RGBA32Buffer* frameBufferAtIndex(size_t index);
+        // CAUTION: setFailed() deletes |m_reader|.  Be careful to avoid
+        // accessing deleted memory, especially when calling this from inside
+        // PNGImageReader!
+        virtual bool setFailed();
 
         // Callbacks from libpng
         void headerAvailable();
@@ -62,6 +66,7 @@ namespace WebCore {
         void decode(bool onlySize);
 
         OwnPtr<PNGImageReader> m_reader;
+        bool m_doNothingOnFailure;
     };
 
 } // namespace WebCore