Treat null dictionary members as missing per WebIDL

third_party/WebKit/Source/bindings/tests/results/core/V8TestPermissiveDictionary.cpp

Index: third_party/WebKit/Source/bindings/tests/results/core/V8TestPermissiveDictionary.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8TestPermissiveDictionary.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8TestPermissiveDictionary.cpp
index a7fbd315af8c687ca735dcf3b852bbe9a9c41dbf..bdbbc84573384a41f5810d780758a7ed52647315 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8TestPermissiveDictionary.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8TestPermissiveDictionary.cpp
@@ -31,7 +31,7 @@ void V8TestPermissiveDictionary::toImpl(v8::Isolate* isolate, v8::Local<v8::Valu
         exceptionState.rethrowV8Exception(block.Exception());
         return;
     }
-    if (booleanMemberValue.IsEmpty() || booleanMemberValue->IsUndefined()) {
+    if (isUndefinedOrNull(booleanMemberValue)) {
         // Do nothing.
     } else {
         bool booleanMember = toBoolean(isolate, booleanMemberValue, exceptionState);