IDL: object type support for IDL dictionary

Source/bindings/templates/dictionary_v8.cpp

Index: Source/bindings/templates/dictionary_v8.cpp
diff --git a/Source/bindings/templates/dictionary_v8.cpp b/Source/bindings/templates/dictionary_v8.cpp
index fc0bac90bb8ae7a6721222ef7200e14efc3455bc..1e34b333efa181f25b3e3f1334846278b46a653a 100644
--- a/Source/bindings/templates/dictionary_v8.cpp
+++ b/Source/bindings/templates/dictionary_v8.cpp
@@ -33,6 +33,11 @@ namespace blink {
             exceptionState.throwTypeError("member {{member.name}} ('" + string + "') is not a valid enum value.");
             return 0;
         }
+    {% elif member.is_object %}
+        if (!{{member.name}}.isObject()) {
+            exceptionState.throwTypeError("member {{member.name}} is not an object.");
+            return 0;
+        }
     {% endif %}
         impl->{{member.setter_name}}({{member.name}});
     } else if (block.HasCaught()) {
@@ -47,12 +52,16 @@ v8::Handle<v8::Value> toV8({{cpp_class}}* impl, v8::Handle<v8::Object> creationC
 {
     v8::Handle<v8::Object> v8Object = v8::Object::New(isolate);
     {% for member in members %}
-    if (impl->{{member.has_method_name}}())
+    if (impl->{{member.has_method_name}}()) {
+        {% if member.is_object %}
+        ASSERT(impl->{{member.name}}().isObject());
+        {% endif %}
         v8Object->Set(v8String(isolate, "{{member.name}}"), {{member.cpp_value_to_v8_value}});
     {% if member.v8_default_value %}
-    else
+    } else {
         v8Object->Set(v8String(isolate, "{{member.name}}"), {{member.v8_default_value}});
     {% endif %}
+    }
     {% endfor %}
     return v8Object;
 }