Changing serviceuri param to be url from string in Blink and tagging requests to speech recognizer

LayoutTests/fast/speech/scripted/speechrecognition-basics.html

Index: LayoutTests/fast/speech/scripted/speechrecognition-basics.html
diff --git a/LayoutTests/fast/speech/scripted/speechrecognition-basics.html b/LayoutTests/fast/speech/scripted/speechrecognition-basics.html
index 95aaa44220f49b63b57cf169b4b5d8cd67ca51c0..256d0140025b115b1589a91f9972076f6ea203e0 100644
--- a/LayoutTests/fast/speech/scripted/speechrecognition-basics.html
+++ b/LayoutTests/fast/speech/scripted/speechrecognition-basics.html
@@ -12,7 +12,32 @@ function run() {
     shouldBeTrue("'webkitSpeechRecognition' in self");
     shouldBeFalse("webkitSpeechRecognition == null");
 
-    oneMatchTest();
+    nullServiceURI();
+}
+
+function nullServiceURI(){
+    debug('\nnullServiceURI():');
+    evalAndLog("window.r = new webkitSpeechRecognition()");
+
+    r.onend = function() {
+        debug('onend');
+        validServiceURI();
+    }
+
+    shouldNotThrow("r.start()");
+}
+
+function validServiceURI(){
+    debug('\nvalidServiceURI():');
+    evalAndLog("window.r = new webkitSpeechRecognition()");
+    evalAndLog("r.serviceURI = 'vendor://com.google?lm=dictation&client=chromium/com.google.docs'");
+
+    r.onend = function() {
+        debug('onend');
+        oneMatchTest();
+    }
+
+    shouldNotThrow("r.start()");
 }
 
 function oneMatchTest() {