Remove support for TreatReturnedNullStringAs=Null|Undefined

third_party/WebKit/Source/bindings/scripts/v8_types.py

Index: third_party/WebKit/Source/bindings/scripts/v8_types.py
diff --git a/third_party/WebKit/Source/bindings/scripts/v8_types.py b/third_party/WebKit/Source/bindings/scripts/v8_types.py
index 939dda0dda62e1db8eefdff1b4f1db041fc12d17..04739d2e46ae0fb02a255a9e12b9a11cd68c2554 100644
--- a/third_party/WebKit/Source/bindings/scripts/v8_types.py
+++ b/third_party/WebKit/Source/bindings/scripts/v8_types.py
@@ -770,14 +770,7 @@ def v8_conversion_type(idl_type, extended_attributes):
     if idl_type.is_string_type:
         if idl_type.is_nullable:
             return 'StringOrNull'
-        if 'TreatReturnedNullStringAs' not in extended_attributes:
-            return base_idl_type
-        treat_returned_null_string_as = extended_attributes['TreatReturnedNullStringAs']
-        if treat_returned_null_string_as == 'Null':
-            return 'StringOrNull'
-        if treat_returned_null_string_as == 'Undefined':
-            return 'StringOrUndefined'
-        raise 'Unrecognized TreatReturnedNullStringAs value: "%s"' % treat_returned_null_string_as
+        return base_idl_type
     if idl_type.is_basic_type or base_idl_type == 'ScriptValue':
         return base_idl_type
     # Generic dictionary type
@@ -801,9 +794,7 @@ V8_SET_RETURN_VALUE = {
     'DOMString': 'v8SetReturnValueString(info, {cpp_value}, info.GetIsolate())',
     'ByteString': 'v8SetReturnValueString(info, {cpp_value}, info.GetIsolate())',
     'USVString': 'v8SetReturnValueString(info, {cpp_value}, info.GetIsolate())',
-    # [TreatReturnedNullStringAs]
     'StringOrNull': 'v8SetReturnValueStringOrNull(info, {cpp_value}, info.GetIsolate())',
-    'StringOrUndefined': 'v8SetReturnValueStringOrUndefined(info, {cpp_value}, info.GetIsolate())',
     'void': '',
     # No special v8SetReturnValue* function (set value directly)
     'float': 'v8SetReturnValue(info, {cpp_value})',
@@ -890,9 +881,7 @@ CPP_VALUE_TO_V8_VALUE = {
     'double': 'v8::Number::New({isolate}, {cpp_value})',
     'unrestricted double': 'v8::Number::New({isolate}, {cpp_value})',
     'void': 'v8Undefined()',
-    # [TreatReturnedNullStringAs]
     'StringOrNull': '{cpp_value}.isNull() ? v8::Local<v8::Value>(v8::Null({isolate})) : v8String({isolate}, {cpp_value})',
-    'StringOrUndefined': '{cpp_value}.isNull() ? v8Undefined() : v8String({isolate}, {cpp_value})',
     # Special cases
     'Dictionary': '{cpp_value}.v8Value()',
     'EventHandler': '{cpp_value} ? v8::Local<v8::Value>(V8AbstractEventListener::cast({cpp_value})->getListenerObject(impl->executionContext())) : v8::Local<v8::Value>(v8::Null({isolate}))',