Move i18n's number-format 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 DecimalFormat;
 class SimpleDateFormat;
 }
 
 namespace v8 {
 namespace internal {
 
 class I18N {
  public:
   // Creates an ObjectTemplate with one internal field.
   static Handle<ObjectTemplateInfo> GetTemplate(Isolate* isolate);
 
   // Creates an ObjectTemplate with two internal fields.
   static Handle<ObjectTemplateInfo> GetTemplate2(Isolate* isolate);
 
  private:
   I18N();
 };
 
+
 class DateFormat {
  public:
   // Create a formatter for the specificied locale and options. Returns the
   // resolved settings for the locale / options.
   static icu::SimpleDateFormat* InitializeDateTimeFormat(
       Isolate* isolate,
       Handle<String> locale,
       Handle<JSObject> options,
       Handle<JSObject> resolved);
 
   // Unpacks date format object from corresponding JavaScript object.
   static icu::SimpleDateFormat* UnpackDateFormat(Isolate* isolate,
                                                  Handle<JSObject> obj);
 
   // Release memory we allocated for the DateFormat once the JS object that
   // holds the pointer gets garbage collected.
   static void DeleteDateFormat(v8::Isolate* isolate,
                                Persistent<v8::Object>* object,
                                void* param);
  private:
   DateFormat();
 };
 
+
+class NumberFormat {
+ public:
+  // Create a formatter for the specificied locale and options. Returns the
+  // resolved settings for the locale / options.
+  static icu::DecimalFormat* InitializeNumberFormat(
+      Isolate* isolate,
+      Handle<String> locale,
+      Handle<JSObject> options,
+      Handle<JSObject> resolved);
+
+  // Unpacks number format object from corresponding JavaScript object.
+  static icu::DecimalFormat* UnpackNumberFormat(Isolate* isolate,
+                                                Handle<JSObject> obj);
+
+  // Release memory we allocated for the NumberFormat once the JS object that
+  // holds the pointer gets garbage collected.
+  static void DeleteNumberFormat(v8::Isolate* isolate,
+                                 Persistent<v8::Object>* object,
+                                 void* param);
+ private:
+  NumberFormat();
+};
+
 } }  // namespace v8::internal
 
 #endif  // V8_I18N_H_