[Isolates] Merge (7083,7111] from bleeding_edge.

src/handles.cc

Index: src/handles.cc
diff --git a/src/handles.cc b/src/handles.cc
index 1c7173d45ec3b79d275c87e4bc6da39dc31a8da2..820bc921fecfe8b5b45fc940f08d959f10682bd9 100644
--- a/src/handles.cc
+++ b/src/handles.cc
@@ -478,7 +478,7 @@ Handle<Object> SetElement(Handle<JSObject> object,
                           uint32_t index,
                           Handle<Object> value,
                           StrictModeFlag strict_mode) {
-  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);
@@ -495,7 +495,6 @@ Handle<Object> SetOwnElement(Handle<JSObject> object,
                              uint32_t index,
                              Handle<Object> value,
                              StrictModeFlag strict_mode) {
-  ASSERT(!object->HasPixelElements());
   ASSERT(!object->HasExternalArrayElements());
   CALL_HEAP_FUNCTION(object->GetIsolate(),
                      object->SetElement(index, *value, strict_mode, false),