Combine typed and pixel arrays.

src/handles.cc

Index: src/handles.cc
diff --git a/src/handles.cc b/src/handles.cc
index d625d644c776e744251d69bfc7f582b77751c1b2..57b5b336af67fc896e17aa8ebdd67b2afb452931 100644
--- a/src/handles.cc
+++ b/src/handles.cc
@@ -421,7 +421,7 @@ Handle<String> SubString(Handle<String> str,
 Handle<Object> SetElement(Handle<JSObject> object,
                           uint32_t index,
                           Handle<Object> value) {
-  if (object->HasPixelElements() || object->HasExternalArrayElements()) {
+  if (object->HasExternalArrayElements()) {
     if (!value->IsSmi() && !value->IsHeapNumber() && !value->IsUndefined()) {
       bool has_exception;
       Handle<Object> number = Execution::ToNumber(value, &has_exception);
@@ -436,7 +436,7 @@ Handle<Object> SetElement(Handle<JSObject> object,
 Handle<Object> SetOwnElement(Handle<JSObject> object,
                              uint32_t index,
                              Handle<Object> value) {
-  ASSERT(!object->HasPixelElements());
+  ASSERT(!object->HasExternalPixelElements());
   ASSERT(!object->HasExternalArrayElements());
   CALL_HEAP_FUNCTION(object->SetElement(index, *value, false), Object);
 }