Upgrade libpng to 1.2.44 for security fixes.

Change-Id: Iae257ca6ea7031a99f38e9de196d71ef8b94f9aa
diff --git a/ANNOUNCE b/ANNOUNCE
index 204bbfd..b0824ee 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.2.38 - July 16, 2009
+Libpng 1.2.44 - June 26, 2010
 
 This is a public release of libpng, intended for use in production codes.
 
@@ -8,57 +8,48 @@
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.2.38.tar.gz
-   libpng-1.2.38.tar.lzma
-     (Get the lzma codec from <http://tukaani.org/lzma>).
-   libpng-1.2.38.tar.bz2
+   libpng-1.2.44.tar.xz (LZMA-compressed, recommended)
+   libpng-1.2.44.tar.gz
+   libpng-1.2.44.tar.bz2
 
 Source files with LF line endings (for Unix/Linux) without the
 "configure" script
 
-   libpng-1.2.38-no-config.tar.gz
-   libpng-1.2.38-no-config.tar.lzma
-   libpng-1.2.38-no-config.tar.bz2
+   libpng-1.2.44-no-config.tar.xz (LZMA-compressed, recommended)
+   libpng-1.2.44-no-config.tar.gz
+   libpng-1.2.44-no-config.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lpng1238.zip
-   lpng1238.7z
-   lpng1238.tar.bz2
+   lpng1244.zip
+   lpng1244.7z
+   lpng1244.tar.bz2
 
 Project files
 
-   libpng-1.2.38-project-netware.zip
-   libpng-1.2.38-project-wince.zip
+   libpng-1.2.44-project-netware.zip
+   libpng-1.2.44-project-wince.zip
 
 Other information:
 
-   libpng-1.2.38-README.txt
-   libpng-1.2.38-KNOWNBUGS.txt
-   libpng-1.2.38-LICENSE.txt
-   libpng-1.2.38-Y2K-compliance.txt
-   libpng-1.2.38-[previous version]-diff.txt
+   libpng-1.2.44-README.txt
+   libpng-1.2.44-KNOWNBUGS.txt
+   libpng-1.2.44-LICENSE.txt
+   libpng-1.2.44-Y2K-compliance.txt
+   libpng-1.2.44-[previous version]-diff.txt
 
-Changes since the last public release (1.2.37):
+Changes since the last public release (1.2.43):
 
-version 1.2.38 [July 16, 2009]
+version 1.2.44 [June 26, 2010]
 
-  Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
-    multiple times and to specify the sample order in the tRNS chunk,
-    because the ISO PNG specification has a typo in the tRNS table.
-  Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
-    PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
-    available for ignoring known chunks even when not saving unknown chunks.
-  Added PNG_NO_HANDLE_AS_UNKNOWN in the PNG_LEGACY_SUPPORTED block of
-    pngconf.h, and moved the various unknown chunk macro definitions
-    outside of the PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
-  Added a reference to the libpng license in each source file.
-  Rebuilt configure scripts with autoconf-2.63.
-
+  Rewrote png_process_IDAT_data to consistently treat extra data as warnings
+    and handle end conditions more cleanly.
+  Removed the now-redundant check for out-of-bounds new_row from example.c
 
 
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