Remove the flag for the Speech API and turn it on by default.

content/browser/speech/speech_recognition_dispatcher_host.cc

Index: content/browser/speech/speech_recognition_dispatcher_host.cc
diff --git a/content/browser/speech/speech_recognition_dispatcher_host.cc b/content/browser/speech/speech_recognition_dispatcher_host.cc
index 6a398f985c7f9f87454e43d61f749de220aba34e..453d9d66a0e29c8e5fb3726472fcd56d55bd763d 100644
--- a/content/browser/speech/speech_recognition_dispatcher_host.cc
+++ b/content/browser/speech/speech_recognition_dispatcher_host.cc
@@ -42,11 +42,7 @@ SpeechRecognitionManager* SpeechRecognitionDispatcherHost::manager() {
   if (manager_for_tests_)
     return manager_for_tests_;
 
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
-  if (command_line.HasSwitch(switches::kEnableScriptedSpeech))
-    return SpeechRecognitionManager::GetInstance();
-
-  return NULL;
+  return SpeechRecognitionManager::GetInstance();
 }
 
 bool SpeechRecognitionDispatcherHost::OnMessageReceived(