Adding supported checks & test for SpeechRecognition APIs.

tools/dom/templates/html/dart2js/impl_SpeechRecognition.darttemplate

Index: tools/dom/templates/html/dart2js/impl_SpeechRecognition.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_Range.darttemplate b/tools/dom/templates/html/dart2js/impl_SpeechRecognition.darttemplate
similarity index 53%
copy from tools/dom/templates/html/impl/impl_Range.darttemplate
copy to tools/dom/templates/html/dart2js/impl_SpeechRecognition.darttemplate
index 13ab55211ff8e592d4dce729ba0c0e8a0f0e9956..599b50c579bcccbc8d05e0b53ad26eabe7578fb8 100644
--- a/tools/dom/templates/html/impl/impl_Range.darttemplate
+++ b/tools/dom/templates/html/dart2js/impl_SpeechRecognition.darttemplate
@@ -1,13 +1,13 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, 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.
 
-// WARNING: Do not edit - generated code.
-
 part of $LIBRARYNAME;
 
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-  factory $CLASSNAME() => document.$dom_createRange();
-
 $!MEMBERS
+  static SpeechRecognition _create() {
+    return JS('SpeechRecognition',
+        'new (window.SpeechRecognition || window.webkitSpeechRecognition)()');
+  }
 }