v8 typed arrays: add DataView type

src/api.h

Index: src/api.h
diff --git a/src/api.h b/src/api.h
index 12d6e3d08229343644b3f571933c15543b90c19b..d6642a46de84542b4efc69c909d5dc1bbf43eefa 100644
--- a/src/api.h
+++ b/src/api.h
@@ -169,6 +169,7 @@ class RegisteredExtension {
   V(Object, JSObject)                          \
   V(Array, JSArray)                            \
   V(ArrayBuffer, JSArrayBuffer)                \
+  V(DataView, JSDataView)                      \
   V(TypedArray, JSTypedArray)                  \
   V(Uint8Array, JSTypedArray)                  \
   V(Uint8ClampedArray, JSTypedArray)           \
@@ -216,7 +217,8 @@ class Utils {
       v8::internal::Handle<v8::internal::JSArray> obj);
   static inline Local<ArrayBuffer> ToLocal(
       v8::internal::Handle<v8::internal::JSArrayBuffer> obj);
-
+  static inline Local<DataView> ToLocal(
+      v8::internal::Handle<v8::internal::JSDataView> obj);
   static inline Local<TypedArray> ToLocal(
       v8::internal::Handle<v8::internal::JSTypedArray> obj);
   static inline Local<Uint8Array> ToLocalUint8Array(
@@ -329,6 +331,7 @@ MAKE_TO_LOCAL(ToLocal, JSRegExp, RegExp)
 MAKE_TO_LOCAL(ToLocal, JSObject, Object)
 MAKE_TO_LOCAL(ToLocal, JSArray, Array)
 MAKE_TO_LOCAL(ToLocal, JSArrayBuffer, ArrayBuffer)
+MAKE_TO_LOCAL(ToLocal, JSDataView, DataView)
 MAKE_TO_LOCAL(ToLocal, JSTypedArray, TypedArray)
 
 MAKE_TO_LOCAL_TYPED_ARRAY(Uint8Array, kExternalUnsignedByteArray)