Apply the converter patches for ICU 4.2.1 to ICU 4.6...

icu46/source/data/mappings/windows-950-2000.ucm

 # ***************************************************************************
 # *
 # *   Copyright (C) 2001-2003, International Business Machines
 # *   Corporation and others.  All Rights Reserved.
 # *
 # ***************************************************************************
 #
 # File created on Dec 03 13:48 Pacific Standard Time 2002
 #
 # File created by genmucm tool.
@@ skipping 19 matching lines @@
 <subchar>                     \x3F
 <icu:charsetFamily>           "ASCII"
 # Suggested ICU specific alias information
 #<icu:alias>                  "windows-950_VPUA"
 
 <icu:state>                   0-80, 81-fe:1, ff
 <icu:state>                   40-7e, 80-fe
 
 # build an extension-only (delta) .cnv file
 # requires the base .cnv file at runtime
-<icu:base>                    "ibm-1373_P100-2002"
+# CHROME : we don't want to include ibm-1373
+#<icu:base>                    "ibm-1373_P100-2002"
 
 # The following was the generated state table.
 # This does not account for unassigned characters
 #<icu:state>                  0-80, 81-fe:1, ff
 #<icu:state>                  40-7e, a1-fe
 #
 CHARMAP
 <U0000> \x00 |0
 <U0001> \x01 |0
 <U0002> \x02 |0
@@ skipping 20318 matching lines @@
 <UFF5B> \xA1\x61 |0
 <UFF5C> \xA1\x55 |0
 <UFF5D> \xA1\x62 |0
 <UFF5E> \xA1\xE3 |0
 <UFF64> \xA1\x4E |1
 <UFFE0> \xA2\x46 |0
 <UFFE1> \xA2\x47 |0
 <UFFE3> \xA1\xC3 |0
 <UFFE5> \xA2\x44 |0
 END CHARMAP