ICU update to 54 - step 4

README.chromium

 Name: icu
 URL: http://site.icu-project.org/
 Version: 54.1
 License: MIT
 Security Critical: yes
 
 WARNING: The head of third_party/icu is in the middle of upgrading to ICU 54.1
 and it's NOT usable for Chromium/Blink/v8.
  - DO NOT deps-roll ICU to the head.
  - If there is a critical change to make (e.g. security), a branch can be cut
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     b. SCSU, BOCU, ISCII, UTF-7, LMB, ibm42*, ISO-2022-{KR,CN*} and HZ-GB  :
        converters and detectors are dropped leading to the ~100kB reduction
        in the code size.
 
   - Upstream bugs
     http://www.icu-project.org/trac/ticket/11296 (uconv.patch)
     http://www.icu-project.org/trac/ticket/10303 (html5 encoding tables)
 
 
 5. Locale changes
+
+  - patches/locale_google.patch : Google's internal ICU locale changes
+
   - patches/locale1.patch :
       a. Exemplar character set changes for zh*, ja + 9 Indian locales
       b. Minor fixes for Korean, a few Indic (AmPmMarkers) and
       others (datetime format)
 
   - Locale build configuration files: To include the full locale data
     for Chrome's UI languages and the minimum locale data for other locales,
     add reslocal.mk or {trns,sprep,rbnf,coll}local.mk files to
     source/data/{coll,curr,lang.locale,curr,region,translit,zone,rbnf,sprep}.
 
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 8. Build-related changes
 
   - patches/wpo.patch
     upstream bugs : http://bugs.icu-project.org/trac/ticket/8043
                     http://bugs.icu-project.org/trac/ticket/5701
   - patches/vscomp.patch for building with Visual Studio on Windows.
      a. do not use WINDOWS_LOCALE_API in locmap.c
      b. do not redefine stringpiece::npos
 
   - patches/data.build.patch :
-      Remove unnecessary resources : invuca, unames, collator source, stringprep
+      Remove unnecessary resources : unames, collator rule source
   - patches/data.build.win.patch :
       Windows-only data build patch.
 
 9. Pre-built data files are checked in with the following steps on Linux:
 
     a. Make a icu data build directory outside the Chromium source tree
        and cd to that directory.
     b. Run
 
       ${CHROME_ICU_TREE_TOP}/source/runConfigureICU Linux --disable-layout
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 10. Apply the following patches for regex
    - patches/regex.patch (a combined patch of 3 revisions below)
    - upstream bugs (fixed in the upstream ToT) :
      http://bugs.icu-project.org/trac/ticket/11370 (r36723:36724)
      http://bugs.icu-project.org/trac/ticket/11369 (r36726:36727)
      http://bugs.icu-project.org/trac/ticket/11371 (r36800:36801)
 
 11. Fix a bug in locid (getBaseName is wrong).
    - patches/locid.patch
    - upstream bug: http://bugs.icu-project.org/trac/ticket/11421