Adding supported checks & test for SpeechRecognition APIs.

tests/html/html.status

 # 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.
 
 window_open_test: Skip # http://dartbug.com/5151
 
 event_test: Skip  # Issue 1996
 webgl_1_test: Skip  # Issue 1495
 
 # Layout tests are only supported on DRT.
@@ skipping 54 matching lines @@
 input_element_test/supported_week: Fail
 isolates_test: Skip
 measurement_test: Fail, Pass
 media_stream_test/supported: Fail
 messageevent_test: Fail
 mutationobserver_test/supported: Fail
 native_gc_test: Fail, Pass # BUG(7774): Untriaged.
 notifications_test/supported: Fail
 serialized_script_value_test: Fail
 shadow_dom_test/supported: Fail
+speechrecognition_test/supported: Fail
 storage_test: Fail, Pass
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 svg_3_test: Fail
 websql_test: Fail
 websocket_test/websocket: Fail # TODO(efortuna): Issue 7875.
 window_open_test: Skip
 xhr_cross_origin_test: Fail # TODO(efortuna): Issue 7875.
 xsltprocessor_test: Fail
 
@@ skipping 41 matching lines @@
 input_element_test/supported_time: Fail
 input_element_test/supported_url: Fail
 input_element_test/supported_week: Fail
 media_stream_test/supported: Fail
 messageevent_test: Fail
 mutationobserver_test/supported: Fail
 notifications_test/supported: Fail
 postmessage_structured_test: Skip   # BUG(5685): times out.
 serialized_script_value_test: Fail
 shadow_dom_test/supported: Fail
+speechrecognition_test/supported: Fail
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 url_test: Fail              # IE9 does not support createObjectURL (it is supported in IE10)
 websocket_test/supported: Fail
 window_open_test: Skip      # BUG(4016)
 xsltprocessor_test: Skip    # BUG(4016)
 isolates_test: Skip         # BUG(4016)
 xhr_test: Skip              # BUG(4016)
 xhr_cross_origin_test: Fail # Issue 6016.
@@ skipping 12 matching lines @@
 input_element_test/supported_datetime: Fail
 input_element_test/supported_datetime-local: Fail
 input_element_test/supported_month: Fail, Crash
 input_element_test/supported_range: Fail, Crash    # TODO(efortuna): Please triage this failure.
 input_element_test/supported_time: Fail, Crash
 input_element_test/supported_week: Fail, Crash
 fileapi_test/supported: Fail
 media_stream_test/supported: Fail
 node_test: Skip # Issue 6457
 shadow_dom_test/supported: Fail
+speechrecognition_test/supported: Fail
 
 [ $runtime == opera ]
 document_test/supports_cssCanvasContext: Fail
 document_test/document: Fail # Issue: 7413
 form_data_test: Fail # Issue: 7413
 keyboard_event_test: Fail # Issue: 7413
 element_test/eventListening: Fail # Issue: 7413
 element_test/children: Fail # Issue: 7413
 audiobuffersourcenode_test: Fail
 canvas_test: Pass,Fail
 audiocontext_test: Fail
 blob_constructor_test: Fail
 canvas_using_html_test: Fail
 canvas_test: Fail
 css_test: Fail
 cssstyledeclaration_test: Fail
 element_add_test: Fail
 element_constructor_1_test: Fail
 element_test/constructors: Fail
 element_test/elements: Fail
 element_test/eventListening: Crash
 element_test/queryAll: Fail
 element_webkit_test: Fail
 htmlelement_test: Fail
 indexeddb_1_test/supported: Fail
 mutationobserver_test/supported: Fail
 notifications_test/supported: Fail
 performance_api_test/supported: Fail
 serialized_script_value_test: Fail
+speechrecognition_test/supported: Fail
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 typed_arrays_arraybuffer_test: Fail
 url_test: Fail
 fileapi_test: Skip # Timeout.
 inner_frame_test: Skip # Timeout.
 js_interop_3_test: Skip # Timeout.
 js_interop_4_test: Skip # Timeout.
 isolates_test: Skip # Timeout.
@@ skipping 17 matching lines @@
 input_element_test/supported_date: Fail
 input_element_test/supported_datetime: Fail
 input_element_test/supported_datetime-local: Fail
 input_element_test/supported_month: Fail
 input_element_test/supported_time: Fail
 input_element_test/supported_week: Fail
 input_element_test/supported_number: Fail
 input_element_test/supported_range: Fail
 notifications_test/supported: Fail
 shadow_dom_test/supported: Fail
+speechrecognition_test/supported: Fail
 # Interfaces not implemented: SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGStylable
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 transferables_test: Fail   # Issue 3392.
 websql_test: Fail # FF does not support web SQL
 wheelevent_test: Skip # Times out on FF 16. Issue 7943
 
 [ $runtime == ie9 && ($system == linux || $system == macos) ]
 *: Skip
@@ skipping 11 matching lines @@
 
 [ $compiler == dart2js && ($runtime == drt || $runtime == ff) ]
 request_animation_frame_test: Skip # Async test hangs.
 
 [ $compiler == dart2js && ($runtime == drt || $runtime == chrome || $runtime == ff || $runtime == safari) ]
 isolates_test: Skip   # Timeout because leg does not support web workers.
 
 [ $compiler == dart2js && $runtime == ff ]
 inner_frame_test: Skip # Timeout
 svg_3_test: Skip # Timeout