IDL compiler: [CustomLegacyCall] interfaces, cleanup header conditional spacing

Source/bindings/templates/interface.h

 {# http://www.chromium.org/blink/coding-style#TOC-License #}
 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 {# FIXME: Rename to Python when switch #}
 // This file has been auto-generated by code_generator_v8.pm. DO NOT MODIFY!
 
 #ifndef {{v8_class_name}}_h
 #define {{v8_class_name}}_h
 
-{% if conditional_string %}
-#if {{conditional_string}}
-{% endif %}
+{% filter conditional(conditional_string) %}
 {% for filename in header_includes %}
 #include "{{filename}}"
 {% endfor %}
 
 namespace WebCore {
 
 class {{v8_class_name}} {
 public:
     static bool hasInstance(v8::Handle<v8::Value>, v8::Isolate*, WrapperWorldType);
     static bool hasInstanceInAnyWorld(v8::Handle<v8::Value>, v8::Isolate*);
@@ skipping 20 matching lines @@
     {% filter conditional(attribute.conditional_string) %}
     static void {{attribute.name}}AttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>&);
     {% endfilter %}
     {% endif %}
     {% if attribute.has_custom_setter %}{# FIXME: and not attribute.implemented_by #}
     {% filter conditional(attribute.conditional_string) %}
     static void {{attribute.name}}AttributeSetterCustom(v8::Local<v8::Value>, const v8::PropertyCallbackInfo<void>&);
     {% endfilter %}
     {% endif %}
     {% endfor %}
+    {% if has_custom_legacy_call %}
+    static void legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>&);
+    {% endif %}
     static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 0;
     static inline void* toInternalPointer({{cpp_class_name}}* impl)
     {
         return impl;
     }
 
     static inline {{cpp_class_name}}* fromInternalPointer(void* object)
     {
         return static_cast<{{cpp_class_name}}*>(object);
     }
@@ skipping 89 matching lines @@
     v8SetReturnValueForMainWorld(callbackInfo, impl.get());
 }
 
 template<class CallbackInfo, class Wrappable>
 inline void v8SetReturnValueFast(const CallbackInfo& callbackInfo, PassRefPtr<{{cpp_class_name}} > impl, Wrappable* wrappable)
 {
     v8SetReturnValueFast(callbackInfo, impl.get(), wrappable);
 }
 
 }
-{% if conditional_string %}
-
-#endif // {{conditional_string}}
-{% endif %}
-
+{% endfilter %}
 #endif // {{v8_class_name}}_h