Revert "Patched in Dartium JsInterop"

tools/dom/scripts/systemhtml.py

Index: tools/dom/scripts/systemhtml.py
diff --git a/tools/dom/scripts/systemhtml.py b/tools/dom/scripts/systemhtml.py
index d2e55d20d9e9b2e650e79b6a321ffb9b5bb7d2c9..69ee6429cfa1c0db5ec0bf3ea2a0ec3bea34c764 100644
--- a/tools/dom/scripts/systemhtml.py
+++ b/tools/dom/scripts/systemhtml.py
@@ -494,7 +494,6 @@ class HtmlDartInterfaceGenerator(object):
 
   def GenerateInterface(self):
     interface_name = self._interface_type_info.interface_name()
-
     implementation_name = self._interface_type_info.implementation_name()
     self._library_emitter.AddTypeEntry(self._library_name,
                                        self._interface.id, implementation_name)
@@ -560,15 +559,15 @@ class HtmlDartInterfaceGenerator(object):
 
     mixins = self._backend.Mixins()
 
+    # TODO(terry): Do we need a more generic solution other than handling NamedNodeMap
+    #              we can't call super on a mixin interface - yet.
+    if self._options.templates._conditions['DARTIUM'] and self._options.dart_js_interop and self._interface.id == 'NamedNodeMap':
+      mixins = None
     mixins_str = ''
     if mixins:
       mixins_str = ' with ' + ', '.join(mixins)
       if not base_class:
         base_class = 'Interceptor'
-      elif (base_class == 'NativeFieldWrapperClass2' and
-            self._options.dart_js_interop and
-            not(isinstance(self._backend, Dart2JSBackend))):
-        base_class = 'JsoNativeFieldWrapper'
 
     annotations = self._metadata.GetFormattedMetadata(
         self._library_name, self._interface, None, '')
@@ -584,14 +583,7 @@ class HtmlDartInterfaceGenerator(object):
         # Need to be able to instantiate the class; can't be abstract.
         class_modifiers = ''
       else:
-        # For Dartium w/ JsInterop these suppressed interfaces are needed to
-        # instanciate the internal classes when wrap_jso is called for a JS object.
-        if (self._renamer.ShouldSuppressInterface(self._interface) and
-            not(isinstance(self._backend, Dart2JSBackend)) and
-            self._options.dart_js_interop):
-          class_modifiers = ''
-        else:
-          class_modifiers = 'abstract '
+        class_modifiers = 'abstract '
 
     native_spec = ''
     if not IsPureInterface(self._interface.id):
@@ -600,8 +592,7 @@ class HtmlDartInterfaceGenerator(object):
     class_name = self._interface_type_info.implementation_name()
 
     js_interop_equivalence_op = \
-      '  bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);\n' \
-      + '  int get hashCode => unwrap_jso(this).hashCode;\n'
+      '  bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);\n'
     # ClientRect overrides the equivalence operator.
     if interface_name == 'ClientRect' or interface_name == 'DomRectReadOnly':
         js_interop_equivalence_op = ''
@@ -613,10 +604,10 @@ class HtmlDartInterfaceGenerator(object):
   }}
 
   factory {0}._internalWrap() {{
-    return new {0}.internal_();
+    return new {0}._internal();
   }}
 
-  {0}.internal_() : super.internal_();
+  {0}._internal() : super._internal();
 
 '''.format(class_name)
     """
@@ -624,29 +615,21 @@ class HtmlDartInterfaceGenerator(object):
       final Object expandoJsObject = new Object();
       final Expando<JsObject> dartium_expando = new Expando<JsObject>("Expando_jsObject");
     """
-    if base_class == 'NativeFieldWrapperClass2' or base_class == 'JsoNativeFieldWrapper':
+    if base_class == 'NativeFieldWrapperClass2':
         js_interop_wrapper = '''
   static {0} internalCreate{0}() {{
     return new {0}._internalWrap();
   }}
 
-  js.JsObject blink_jsObject;
+  JsObject blink_jsObject = null;
 
   factory {0}._internalWrap() {{
-    return new {0}.internal_();
+    return new {0}._internal();
   }}
 
-  {0}.internal_() {{ }}
+  {0}._internal() {{ }}
 
 {1}'''.format(class_name, js_interop_equivalence_op)
-        # Change to use the synthesized class so we can construct with a mixin
-        # classes prefixed with name of NativeFieldWrapperClass2 don't have a
-        # default constructor so classes with mixins can't be new'd.
-        if (self._options.templates._conditions['DARTIUM'] and
-            self._options.dart_js_interop and
-            (self._interface.id == 'NamedNodeMap' or
-             self._interface.id == 'CSSStyleDeclaration')):
-            base_class = 'JsoNativeFieldWrapper'
 
     implementation_members_emitter = implementation_emitter.Emit(
         self._backend.ImplementationTemplate(),
@@ -997,7 +980,7 @@ class Dart2JSBackend(HtmlDartGenerator):
       return self._AddConvertingSetter(attr, html_name, conversion)
     self._members_emitter.Emit(
         # TODO(sra): Use metadata to provide native name.
-        '\n  set $HTML_NAME($TYPE value) {'
+        '\n  void set $HTML_NAME($TYPE value) {'
         '\n    JS("void", "#.$NAME = #", this, value);'
         '\n  }'
         '\n',
@@ -1024,10 +1007,10 @@ class Dart2JSBackend(HtmlDartGenerator):
   def _AddConvertingSetter(self, attr, html_name, conversion):
     self._members_emitter.Emit(
         # TODO(sra): Use metadata to provide native name.
-        '\n  set $HTML_NAME($INPUT_TYPE value) {'
+        '\n  void set $HTML_NAME($INPUT_TYPE value) {'
         '\n    this._set_$HTML_NAME = $CONVERT(value);'
         '\n  }'
-        '\n  set _set_$HTML_NAME(/*$NATIVE_TYPE*/ value) {'
+        '\n  void set _set_$HTML_NAME(/*$NATIVE_TYPE*/ value) {'
         '\n    JS("void", "#.$NAME = #", this, value);'
         '\n  }'
         '\n',
@@ -1076,6 +1059,53 @@ class Dart2JSBackend(HtmlDartGenerator):
         NAME=html_name,
         PARAMS=info.ParametersAsDeclaration(self._NarrowInputType))
 
+  def _ConvertArgumentTypes(
+          self, stmts_emitter, arguments, argument_count, info):
+    temp_version = [0]
+    converted_arguments = []  
+    target_parameters = []
+    for position, arg in enumerate(arguments[:argument_count]):
+      conversion = self._InputConversion(arg.type.id, info.declared_name)
+      param_name = arguments[position].id
+      if conversion:
+        temp_version[0] += 1
+        temp_name = '%s_%s' % (param_name, temp_version[0])
+        temp_type = conversion.output_type
+        stmts_emitter.Emit(
+            '$(INDENT)$TYPE $NAME = $CONVERT($ARG);\n',
+            TYPE=TypeOrVar(temp_type),
+            NAME=temp_name,
+            CONVERT=conversion.function_name,
+            ARG=info.param_infos[position].name)
+        converted_arguments.append(temp_name)
+        param_type = temp_type
+        verified_type = temp_type  # verified by assignment in checked mode.
+      else:
+        converted_arguments.append(info.param_infos[position].name)
+        param_type = self._NarrowInputType(arg.type.id)
+        # Verified by argument checking on entry to the dispatcher.
+
+        verified_type = self._InputType(
+            info.param_infos[position].type_id, info)
+        # The native method does not need an argument type if we know the type.
+        # But we do need the native methods to have correct function types, so
+        # be conservative.
+        if param_type == verified_type:
+          if param_type in ['String', 'num', 'int', 'double', 'bool', 'Object']:
+            param_type = 'dynamic'
+
+      target_parameters.append(
+          '%s%s' % (TypeOrNothing(param_type), param_name))
+
+    return target_parameters, converted_arguments
+
+  def _InputType(self, type_name, info):
+    conversion = self._InputConversion(type_name, info.declared_name)
+    if conversion:
+      return conversion.input_type
+    else:
+      return self._NarrowInputType(type_name) if type_name else 'dynamic'
+
   def _AddOperationWithConversions(self, info, html_name):
     # Assert all operations have same return type.
     assert len(set([op.type.id for op in info.operations])) == 1