[Bindings] Simplify V8PrivateProperty::Symbol methods

third_party/WebKit/Source/bindings/templates/attributes.cpp.tmpl

 {% from 'utilities.cpp.tmpl' import declare_enum_validation_variable, v8_value_to_local_cpp_value %}
 
 {##############################################################################}
 {% macro attribute_getter(attribute, world_suffix) %}
 static void {{attribute.name}}AttributeGetter{{world_suffix}}(
 {%- if attribute.is_data_type_property %}
 const v8::PropertyCallbackInfo<v8::Value>& info
 {%- else %}
 const v8::FunctionCallbackInfo<v8::Value>& info
 {%- endif %}) {
@@ skipping 16 matching lines @@
   {% if attribute.is_save_same_object %}
   // [SaveSameObject]
   {% set same_object_private_key = interface_name + attribute.name[0]|capitalize + attribute.name[1:] %}
   // If you see a compile error that
   //   V8PrivateProperty::getSameObject{{same_object_private_key}}
   // is not defined, then you need to register your attribute at
   // V8_PRIVATE_PROPERTY_FOR_EACH defined in V8PrivateProperty.h as
   //   X(SameObject, {{same_object_private_key}})
   auto privateSameObject = V8PrivateProperty::getSameObject{{same_object_private_key}}(info.GetIsolate());
   {
-    v8::Local<v8::Value> v8Value = privateSameObject.get(info.GetIsolate()->GetCurrentContext(), holder);
+    v8::Local<v8::Value> v8Value = privateSameObject.getOrEmpty(holder);
     if (!v8Value.IsEmpty()) {
       v8SetReturnValue(info, v8Value);
       return;
     }
   }
   {% endif %}
 
   {% if not attribute.is_static %}
   {% set local_dom_window_only = interface_name == 'Window' and not attribute.has_cross_origin_getter %}
   {% if local_dom_window_only %}
@@ skipping 108 matching lines @@
   {% endif %}
 
   {% if world_suffix %}
   {{attribute.v8_set_return_value_for_main_world}};
   {% else %}
   {{attribute.v8_set_return_value}};
   {% endif %}
 
   {% if attribute.is_save_same_object %}
   // [SaveSameObject]
-  privateSameObject.set(info.GetIsolate()->GetCurrentContext(), holder, info.GetReturnValue().Get());
+  privateSameObject.set(holder, info.GetReturnValue().Get());
   {% endif %}
   {% endfilter %}{# format_remove_duplicates #}
 }
 {% endmacro %}
 
 
 {######################################}
 {% macro release_only_check(reflect_only_values, reflect_missing,
                             reflect_invalid, reflect_empty, cpp_value) %}
 {# Attribute is limited to only known values: check that the attribute value is
@@ skipping 329 matching lines @@
 static const V8DOMConfiguration::AccessorConfiguration accessorConfiguration[] = {
   {{attribute_configuration(attribute)}}
 };
 for (const auto& accessorConfig : accessorConfiguration)
   V8DOMConfiguration::installAccessor(isolate, world, v8::Local<v8::Object>(), prototypeObject, interfaceObject, signature, accessorConfig);
 {% endfilter %}{# runtime_enabled #}
 {% endfilter %}{# secure_context #}
 {% endfilter %}{# exposed #}
 {% endfor %}
 {% endmacro %}