Move i18n break iterator C++ code to runtime

src/i18n.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // limitations under the License.
 
 #ifndef V8_I18N_H_
 #define V8_I18N_H_
 
 #include "unicode/uversion.h"
 #include "v8.h"
 
 namespace U_ICU_NAMESPACE {
+class BreakIterator;
 class Collator;
 class DecimalFormat;
 class SimpleDateFormat;
 }
 
 namespace v8 {
 namespace internal {
 
 class I18N {
  public:
@@ skipping 71 matching lines @@
 
   // Release memory we allocated for the Collator once the JS object that holds
   // the pointer gets garbage collected.
   static void DeleteCollator(v8::Isolate* isolate,
                              Persistent<v8::Object>* object,
                              void* param);
  private:
   Collator();
 };
 
+class BreakIterator {
+ public:
+  // Create a BreakIterator for the specificied locale and options. Returns the
+  // resolved settings for the locale / options.
+  static icu::BreakIterator* InitializeBreakIterator(
+      Isolate* isolate,
+      Handle<String> locale,
+      Handle<JSObject> options,
+      Handle<JSObject> resolved);
+
+  // Unpacks break iterator object from corresponding JavaScript object.
+  static icu::BreakIterator* UnpackBreakIterator(Isolate* isolate,
+                                                 Handle<JSObject> obj);
+
+  // Release memory we allocated for the BreakIterator once the JS object that
+  // holds the pointer gets garbage collected.
+  static void DeleteBreakIterator(v8::Isolate* isolate,
+                                  Persistent<v8::Value>* object,
+                                  void* param);
+
+ private:
+  BreakIterator();
+};
+
 } }  // namespace v8::internal
 
 #endif  // V8_I18N_H_