Enclose break_iterator code with !UCONFIG_NO_BREAK_ITERATOR

src/i18n.h

Index: src/i18n.h
diff --git a/src/i18n.h b/src/i18n.h
index a50c43a429971f185a471fc0e8393c7c8b58b633..94254621c42ef4205555c5c12765709f502fae15 100644
--- a/src/i18n.h
+++ b/src/i18n.h
@@ -10,7 +10,9 @@
 #include "unicode/uversion.h"
 
 namespace U_ICU_NAMESPACE {
+#if !UCONFIG_NO_BREAK_ITERATION
 class BreakIterator;
+#endif
 class Collator;
 class DecimalFormat;
 class SimpleDateFormat;
@@ -102,6 +104,7 @@ class Collator {
   Collator();
 };
 
+#if !UCONFIG_NO_BREAK_ITERATION
 class BreakIterator {
  public:
   // Create a BreakIterator for the specificied locale and options. Returns the
@@ -124,7 +127,7 @@ class BreakIterator {
  private:
   BreakIterator();
 };
-
+#endif
 } }  // namespace v8::internal
 
 #endif  // V8_I18N_H_