Update code generator for dartium dart:html with typeddata.

tools/dom/scripts/htmldartgenerator.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides shared functionality for the system to generate
 dart:html APIs from the IDL database."""
 
 import emitter
 from generator import AnalyzeOperation, ConstantOutputOrder, \
@@ skipping 216 matching lines @@
       version[0] += 1
       generate_call(stmts_emitter, call_emitter,
           version[0], signature_index, argument_count)
 
     def GenerateChecksAndCall(signature_index, argument_count):
       checks = []
       for i in range(0, argument_count):
         argument = signatures[signature_index][i]
         parameter_name = parameter_names[i]
         test_type = self._DartType(argument.type.id)
-        # TODO(antonm): temporary ugly hack to be able to work with existing
-        # typed array types as well as dart:typeddata types until
-        # the transition to dart:typeddata is complete for both dart2js
-        # and dartium.
-        from systemnative import DartiumBackend
-        if isinstance(self, DartiumBackend):
-          if argument.type.id == 'ArrayBufferView':
-            checks.append(
-                '(%(name)s is ArrayBufferView '
-                '|| %(name)s is _typeddata.TypedData '
-                '|| %(name)s == null)' % {'name': parameter_name})
-            continue
-          if argument.type.id == 'ArrayBuffer':
-            checks.append(
-                '(%(name)s is ArrayBuffer '
-                '|| %(name)s is _typeddata.ByteBuffer '
-                '|| %(name)s == null)' % {'name': parameter_name})
-            continue
-        # end of ugly hack.
         if test_type in ['dynamic', 'Object']:
           checks.append('?%s' % parameter_name)
         elif not can_omit_type_check(test_type, i):
           checks.append('(%s is %s || %s == null)' % (
               parameter_name, test_type, parameter_name))
       # There can be multiple presence checks.  We need them all since a later
       # optional argument could have been passed by name, leaving 'holes'.
       checks.extend(['!?%s' % name for name in parameter_names[argument_count:]])
 
       GenerateCall(signature_index, argument_count, checks)
@@ skipping 384 matching lines @@
         walk(interface.parents)
       else:
         walk(interface.parents[1:])
     return result
 
   def _DartType(self, type_name):
     return self._type_registry.DartType(type_name)
 
   def _IsPrivate(self, name):
     return name.startswith('_')