Add a use counter for Intl.v8BreakIterator

src/i18n.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 // limitations under the License.
 
 #include "src/i18n.h"
 
 #include "unicode/brkiter.h"
 #include "unicode/calendar.h"
 #include "unicode/coll.h"
@@ skipping 613 matching lines @@
     // Defualt is word iterator.
     break_iterator =
       icu::BreakIterator::createWordInstance(icu_locale, status);
   }
 
   if (U_FAILURE(status)) {
     delete break_iterator;
     return NULL;
   }
 
+  isolate->CountUsage(v8::Isolate::UseCounterFeature::kBreakIterator);
+
   return break_iterator;
 }
 
 
 void SetResolvedBreakIteratorSettings(Isolate* isolate,
                                       const icu::Locale& icu_locale,
                                       icu::BreakIterator* break_iterator,
                                       Handle<JSObject> resolved) {
   Factory* factory = isolate->factory();
   UErrorCode status = U_ZERO_ERROR;
@@ skipping 279 matching lines @@
 
 
 void BreakIterator::DeleteBreakIterator(
     const v8::WeakCallbackData<v8::Value, void>& data) {
   DeleteNativeObjectAt<icu::BreakIterator>(data, 0);
   DeleteNativeObjectAt<icu::UnicodeString>(data, 1);
   DestroyGlobalHandle(data);
 }
 
 } }  // namespace v8::internal