[bindings] Eliminate custom bindings for DeviceOrientationEvent.

Source/bindings/scripts/v8_methods.py

Index: Source/bindings/scripts/v8_methods.py
diff --git a/Source/bindings/scripts/v8_methods.py b/Source/bindings/scripts/v8_methods.py
index 870cd4d4c79a51e64810647dadc6d8d0bd864ab8..06cecae8987980c4ffdd72625b09f2a3e425edf6 100644
--- a/Source/bindings/scripts/v8_methods.py
+++ b/Source/bindings/scripts/v8_methods.py
@@ -225,6 +225,10 @@ def argument_context(interface, method, argument, index, is_visible=True):
     this_cpp_type = idl_type.cpp_type_args(extended_attributes=extended_attributes,
                                            raw_type=True,
                                            used_as_variadic_argument=argument.is_variadic)
+    is_undefined_to_null = idl_type.is_primitive_type and \

[haraken, 2015/06/17 16:01:42]

\ is not needed.

+        has_extended_attribute_value(argument, "Default", "Undefined") and \

[haraken, 2015/06/17 16:01:42]

Do we need this condition? I mean, what should happen if JS passes undefined for
an DOM attribute that has [TreatUndefinedAs=Null] but doesn't have
[Default=Undefined]?

+        has_extended_attribute_value(argument, "TreatUndefinedAs", "Null")
+
     return {
         'cpp_type': (
             v8_types.cpp_template_type('Nullable', this_cpp_type)
@@ -250,6 +254,7 @@ def argument_context(interface, method, argument, index, is_visible=True):
         'is_explicit_nullable': idl_type.is_explicit_nullable,
         'is_nullable': idl_type.is_nullable,
         'is_optional': argument.is_optional,
+        'is_undefined_to_null': is_undefined_to_null,
         'is_variadic': argument.is_variadic,
         'is_variadic_wrapper_type': is_variadic_wrapper_type,
         'is_wrapper_type': idl_type.is_wrapper_type,