[bindings] partial interfaces should not violate componentization

Source/bindings/templates/interface.cpp

Index: Source/bindings/templates/interface.cpp
diff --git a/Source/bindings/templates/interface.cpp b/Source/bindings/templates/interface.cpp
index 8e9b8ac9a13a00b436cfd92f3dacf20a09b670da..7b3eefe540810e044e34f489dc6dc6c9bb89794f 100644
--- a/Source/bindings/templates/interface.cpp
+++ b/Source/bindings/templates/interface.cpp
@@ -427,8 +427,8 @@ static void {{cpp_class}}OriginSafeMethodSetterCallback(v8::Local<v8::String> na
 
 
 {##############################################################################}
-{% from 'methods.cpp' import generate_constructor with context %}
 {% block named_constructor %}
+{% from 'methods.cpp' import generate_constructor with context %}
 {% if named_constructor %}
 {% set to_active_dom_object = '%s::toActiveDOMObject' % v8_class
                               if is_active_dom_object else '0' %}
@@ -601,8 +601,8 @@ void {{v8_class}}::visitDOMWrapper(ScriptWrappableBase* internalPointer, const v
 
 
 {##############################################################################}
-{% from 'attributes.cpp' import attribute_configuration with context %}
 {% block shadow_attributes %}
+{% from 'attributes.cpp' import attribute_configuration with context %}
 {% if interface_name == 'Window' %}
 static const V8DOMConfiguration::AttributeConfiguration shadowAttributes[] = {
     {% for attribute in attributes if attribute.is_unforgeable and attribute.should_be_exposed_to_script %}
@@ -729,7 +729,14 @@ V8DOMConfiguration::installAttribute({{method.function_template}}, v8::Handle<v8
 {% block get_dom_template %}
 v8::Handle<v8::FunctionTemplate> {{v8_class}}::domTemplate(v8::Isolate* isolate)
 {
-    return V8DOMConfiguration::domClassTemplate(isolate, const_cast<WrapperTypeInfo*>(&wrapperTypeInfo), install{{v8_class}}Template);
+    {% if has_partial_interface %}
+    {% set installTemplateFunction = '%s::install%sTemplateFunction' % (v8_class, v8_class) %}
+    ASSERT({{installTemplateFunction}} != {{actual_v8_class}}::install{{v8_class}}Template);
+    {% else %}
+    {% set installTemplateFunction = 'install%sTemplate' % v8_class %}
+    {% endif %}
+{% set installTemplateFunction = '%s::install%sTemplateFunction' % (v8_class, v8_class) if has_partial_interface else 'install%sTemplate' % v8_class %}
+    return V8DOMConfiguration::domClassTemplate(isolate, const_cast<WrapperTypeInfo*>(&wrapperTypeInfo), {{installTemplateFunction}});
 }
 
 {% endblock %}
@@ -902,3 +909,24 @@ v8::Handle<v8::Value> toV8NoInline({{cpp_class}}* impl, v8::Handle<v8::Object> c
 }
 
 {% endblock %}
+
+{##############################################################################}
+{% block partial_interface %}
+{% if has_partial_interface %}
+InstallTemplateFunction {{v8_class}}::install{{v8_class}}TemplateFunction = (InstallTemplateFunction)&{{v8_class}}::install{{v8_class}}Template;
+
+void {{v8_class}}::updateWrapperTypeInfo(InstallTemplateFunction installTemplateFunction, InstallConditionallyEnabledMethodsFunction installConditionallyEnabledMethodsFunction)
+{
+    {{v8_class}}::install{{v8_class}}TemplateFunction = installTemplateFunction;
+    if (installConditionallyEnabledMethodsFunction)
+        {{v8_class}}::wrapperTypeInfo.installConditionallyEnabledMethodsFunction = installConditionallyEnabledMethodsFunction;
+}
+
+{% for method in methods if method.overloads and method.overloads.has_partial_overloads %}
+void {{v8_class}}::register{{method.name | blink_capitalize}}MethodForPartialInterface(void (*method)(const v8::FunctionCallbackInfo<v8::Value>&))
+{
+    {{actual_cpp_class}}V8Internal::{{method.name}}MethodForPartialInterface = method;
+}
+{% endfor %}
+{% endif %}
+{% endblock %}