Cutover v8 to use new style callbacks internally

src/extensions/statistics-extension.cc

Index: src/extensions/statistics-extension.cc
diff --git a/src/extensions/statistics-extension.cc b/src/extensions/statistics-extension.cc
index 71b70a533df3edaf36f9dd6f4d7e17ebf14b5910..e5a3009e8000d2060bb9730a4a8204404a7dfab5 100644
--- a/src/extensions/statistics-extension.cc
+++ b/src/extensions/statistics-extension.cc
@@ -58,8 +58,8 @@ static void AddNumber(v8::Local<v8::Object> object,
 }
 
 
-v8::Handle<v8::Value> StatisticsExtension::GetCounters(
-    const v8::Arguments& args) {
+void StatisticsExtension::GetCounters(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
   Isolate* isolate = Isolate::Current();
   Heap* heap = isolate->heap();
 
@@ -141,7 +141,7 @@ v8::Handle<v8::Value> StatisticsExtension::GetCounters(
             "lo_space_commited_bytes");
   AddNumber(result, heap->amount_of_external_allocated_memory(),
             "amount_of_external_allocated_memory");
-  return result;
+  args.GetReturnValue().Set(result);
 }