--- src/app/gfx/codec/orig/png_codec.cc	2009-11-19 12:14:46.000000000 -0800
+++ src/app/gfx/codec/png_codec.cc	2009-11-19 12:15:56.000000000 -0800
@@ -350,9 +350,9 @@
     return false;
 
   *png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
-                                    png_voidp_NULL,
-                                    png_error_ptr_NULL,
-                                    png_error_ptr_NULL);
+                                    0,
+                                    0,
+                                    0);
   if (!*png_ptr)
     return false;
 
@@ -574,9 +574,9 @@
   DCHECK(input_color_components * w <= row_byte_width);
 
   png_struct* png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
-                                                png_voidp_NULL,
-                                                png_error_ptr_NULL,
-                                                png_error_ptr_NULL);
+                                                0,
+                                                0,
+                                                0);
   if (!png_ptr)
     return false;
   png_info* info_ptr = png_create_info_struct(png_ptr);
--- src/third_party/WebKit/WebCore/platform/image-encoders/skia/orig/PNGImageEncoder.cpp	2009-11-19 13:39:07.000000000 -0800
+++ src/third_party/WebKit/WebCore/platform/image-encoders/skia/PNGImageEncoder.cpp	2009-11-19 13:39:25.000000000 -0800
@@ -130,9 +130,9 @@
     }
 
     png_struct* pngPtr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
-                                                 png_voidp_NULL,
-                                                 png_error_ptr_NULL,
-                                                 png_error_ptr_NULL);
+                                                 0,
+                                                 0,
+                                                 0);
     if (!pngPtr)
         return false;