Update uconv.patch to exactly match upstream SVN r37045.

BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//third_party/icu/config.gni")
 
 # Meta target that includes both icuuc and icui18n. Most targets want both.
 # You can depend on the individually if you need to.
 group("icu") {
   deps = [
@@ skipping 24 matching lines @@
   ]
 }
 
 # Config used only by ICU code.
 config("icu_code") {
   cflags = []
   defines = [
     "HAVE_DLOPEN=0",
 
     # Only build encoding coverters and detectors necessary for HTML5.
-    "UCONFIG_NO_NON_HTML5_CONVERSION=1",
+    "UCONFIG_ONLY_HTML_CONVERSION=1",
 
     # No dependency on the default platform encoding.
     # Will cut down the code size.
     "U_CHARSET_IS_UTF8=1",
   ]
 
   if (is_win) {
     # Disable some compiler warnings.
     cflags += [
       "/wd4005",  # Macro redefinition.
@@ skipping 506 matching lines @@
         sources = [
           "android/icudtl_dat.S",
         ]
       } else {
         assert(false, "No icu data for this platform")
       }
       defines = [ "U_HIDE_DATA_SYMBOL" ]
     }
   }
 }