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

Source/modules/speech/SpeechRecognition.cpp

Index: Source/modules/speech/SpeechRecognition.cpp
diff --git a/Source/modules/speech/SpeechRecognition.cpp b/Source/modules/speech/SpeechRecognition.cpp
index 9309fe571c22f61a05c5ec9b5e46297064540470..fc3ded0915f07a68c53699b458d519d49e0f81aa 100644
--- a/Source/modules/speech/SpeechRecognition.cpp
+++ b/Source/modules/speech/SpeechRecognition.cpp
@@ -35,6 +35,7 @@
 #include "modules/speech/SpeechRecognitionController.h"
 #include "modules/speech/SpeechRecognitionError.h"
 #include "modules/speech/SpeechRecognitionEvent.h"
+#include "platform/weborigin/KURL.h"
 
 namespace blink {
 
@@ -58,8 +59,15 @@ void SpeechRecognition::start(ExceptionState& exceptionState)
         return;
     }
 
+    KURL url(ParsedURLString, m_serviceURI);
+    // Throw an error if serviceuri is not empty and url is invalid.
+    if (!m_serviceURI.isEmpty() && !url.isValid()) {
+        exceptionState.throwDOMException(SyntaxError, "serviceuri is invalid");

[jochen (gone - plz use gerrit), 2015/05/05 13:57:53]

the attribute is "serviceURI". also, please add a more helpful message,
something like "is neither empty nor a valid URL"

[kirtia, 2015/05/05 23:12:29]

Done.

+        return;
+    }
+
     m_finalResults.clear();
-    m_controller->start(this, m_grammars, m_lang, m_serviceURI, m_continuous, m_interimResults, m_maxAlternatives, m_audioTrack);
+    m_controller->start(this, m_grammars, m_lang, url, m_continuous, m_interimResults, m_maxAlternatives, m_audioTrack);
     m_started = true;
 }