Enable icu_use_data_file on Windows

base/i18n/icu_util.cc

Index: base/i18n/icu_util.cc
diff --git a/base/i18n/icu_util.cc b/base/i18n/icu_util.cc
index e5c698475e4ad9f7710ce3edc3c2a0d1839ba38b..5c3c60552a335cbdcb9047217fac97a31e621397 100644
--- a/base/i18n/icu_util.cc
+++ b/base/i18n/icu_util.cc
@@ -18,6 +18,9 @@
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
+#if defined(OS_WIN)
+#include "base/strings/utf_string_conversions.h"
+#endif
 #include "third_party/icu/source/common/unicode/putil.h"
 #include "third_party/icu/source/common/unicode/udata.h"
 
@@ -104,7 +107,11 @@ bool InitializeICU() {
     }
 #endif  // OS check
     if (!mapped_file.Initialize(data_path)) {
+#if defined(OS_WIN)
+      DLOG(ERROR) << "Couldn't mmap " << base::UTF16ToUTF8(data_path.value());

[Mark Mentovai, 2013/12/17 22:12:02]

You can do this on all platforms, getting rid of the OS #ifdef and the new
#include at the top of the file:

  data_path.AsUTF8Unsafe().value()

Or, since this is just a DLOG, you can get rid of the filename altogether and
just have it say "Couldn't mmap ICU data". That’s fine too, and none of the
other DLOGs in this function try to print data_path even when they know it and
it’s relevant.

[jungshik at Google, 2013/12/18 20:59:11]

Thanks. I went with AsUTF8Unsafe. 

+#else
       DLOG(ERROR) << "Couldn't mmap " << data_path.value();
+#endif
       return false;
     }
   }