Fix a bug in the network TTS api.

bug:5284966
Change-Id: I460bd12c27671ed42681fd4ccad567c08cb8f70f

Author: narayank

core/java/android/speech/tts/TextToSpeech.java

@@ -1089,6 +1089,7 @@ private Bundle getParams(HashMap<String, String> params) {
 
             // Copy feature strings defined by the framework.
             copyStringParam(bundle, params, Engine.KEY_FEATURE_NETWORK_SYNTHESIS);
+            copyStringParam(bundle, params, Engine.KEY_FEATURE_EMBEDDED_SYNTHESIS);
 
             // Copy over all parameters that start with the name of the
             // engine that we are currently connected to. The engine is

core/java/android/speech/tts/TextToSpeechService.java

@@ -792,8 +792,13 @@ public int isLanguageAvailable(String lang, String country, String variant) {
 
         public String[] getFeaturesForLanguage(String lang, String country, String variant) {
             Set<String> features = onGetFeaturesForLanguage(lang, country, variant);
-            String[] featuresArray = new String[features.size()];
-            features.toArray(featuresArray);
+            String[] featuresArray = null;
+            if (features != null) {
+                featuresArray = new String[features.size()];
+                features.toArray(featuresArray);
+            } else {
+                featuresArray = new String[0];
+            }
             return featuresArray;
         }