mandoline: Fix ICU initialization.

base/i18n/icu_util.h

Index: base/i18n/icu_util.h
diff --git a/base/i18n/icu_util.h b/base/i18n/icu_util.h
index d62f8bac0d946dbb09d71290f58c77b27e5ca63f..ff06b3dc8deb9bad06d930968872b171ef6c30a5 100644
--- a/base/i18n/icu_util.h
+++ b/base/i18n/icu_util.h
@@ -17,11 +17,19 @@ namespace i18n {
 // function should be called before ICU is used.
 BASE_I18N_EXPORT bool InitializeICU();
 
+// Returns a raw PlatformFile to the caller. Each call to this function returns
+// a new file descriptor. The caller is responsible for closing this file when
+// done with it.
+BASE_I18N_EXPORT PlatformFile OpenIcuDataFile();

[sky, 2015/11/05 03:40:17]

Can this return a File? I believe File owns the PlatformFile, which would avoid
accidental leaks.

+
 #if ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE
+#if defined(OS_ANDROID)
 // Returns the PlatformFile and Region that was initialized by InitializeICU().
-// Use with InitializeICUWithFileDescriptor().
+// Use with InitializeICUWithFileDescriptor(). This handle can't be shared
+// within the same process.
 BASE_I18N_EXPORT PlatformFile GetIcuDataFileHandle(
     MemoryMappedFile::Region* out_region);
+#endif
 
 // Android and html_viewer use a file descriptor passed by browser process to
 // initialize ICU in render processes.