Add icudt.dll for Windows

README.chromium

Index: README.chromium
===================================================================
--- README.chromium	(revision 266014)
+++ README.chromium	(working copy)
@@ -145,8 +145,7 @@
   - patches/data.build.patch :
       Remove unnecessary resources : invuca, unames, collator source, stringprep
   - patches/data.build.win.patch :
-      Windows-only data build patch. Add a new target DATALIB to makedata.mak
-  - add an empty file (stubdatabuilt.txt) to source/stubdata
+      Windows-only data build patch.
 
 9. Pre-built data files are checked in with the following steps on Linux:
 
@@ -172,13 +171,6 @@
       {BUILD_DIR_ROOT}/data/out/tmp and copied to the above location with a
       version number (52) dropped.
 
-    - windows/icudt.dll : With icudt52l.dat in place, all the patches applied
-      and header files moved (#11 below), generated by building icudt_build
-      project of build/icudt_build.sln on Windows. icudt52.dll is
-      generated in bin/{Release,Debug} and copied to windows/icudt.dll
-      and checked in. Note that we drop the version number ('52') from the
-      dll name to avoind having to update our build scripts/configuration
-      files everytime ICU is upgraded to a new version.
 
     - {mac,linux}/icudtl_dat.S : Built on Linux with all the
       patches above (except android/brkitr.patch) applied and checked in.
@@ -185,20 +177,10 @@
       This file will be generated in {BUILD_DIR_ROOT}/data/out/tmp as
       icudt52l_dat.S, but '52' is dropped while copying.
 
-      mac/icudtl_dat.S is identical to linux/icudtl_dat.S. It's made
-      by changing the header portion of the Linux version to read as following
-      (no leading whitespace) :
+      mac/icudtl_dat.S is identical to linux/icudtl_dat.S except for
+      the header portion. With "linux/icudtl_dat.S" in its place, 
+      run scripts/make_mac_assembly.sh to generate it.
 
-          .globl _icudt52_dat
-          #ifdef U_HIDE_DATA_SYMBOL
-                 .private_extern _icudt52_dat
-          #endif
-                 .data
-                 .const
-                 .align 4
-          _icudt52_dat:
-
-
     - android/icudtl_dat.S : Built on Linux with all the patches above and
       android/brkitr.patch applied and android/patch_locale.sh executed.
       '52' is dropped from the name generated in the build tree.
@@ -207,6 +189,25 @@
       {BUILD_DIR_ROOT}/data/out/tmp along with icudt52l_dat.S and
       copied to the above location with '52' dropped in its name.
 
+    - windows/icudt.dll (by default, we set icu_use_icu_data_flag to 1
+      and don't use this file.) 
 
+      a. check out a clean copy of icu52  from the upstream on Windows
+         outside the Chrome tree.
+
+        $ svn export --native-eol LF http://source.icu-project.org/repos/icu/icu/tags/release-52-1 ${SEPARATE_ICU_ROOT}/icu52
+
+      b. copy ${CHROME_ICU_ROOT}/source/data/in/icudtl.dat to 
+         ${SEPARATE_ICU_ROOT}/source/data/in/icudt52l.dat
+      c. copy ${CHROME_ICU_ROOT}/source/data/makedata.mak to
+         ${SEPARATE_ICU_ROOT}/source/data/makedata.mak
+      c. In Visual Studio, open source/allinone/allinone.sln solution
+         in ${SEPARATE_ICU_ROOT}
+      d. Build 'makedata' target 
+      e. icudt52.dll will be generated in ${SEPARATE_ICU_ROOT}/bin
+      f. Copy that icudt52.dll to ${CHROME_ICU_ROOT}/windows/icudt.dll 
+         and check that in.
+
+
 10. Change export of U_ICUDATA_ENTRY_POINT from U_IMPORT to U_EXPORT.
     - patches/declspec.patch