Bug 728886 - Part 0: Use constants when initializing RIL state. r=qDot

dom/system/gonk/RadioInterfaceLayer.js

@@ -142,8 +142,8 @@ function RadioInterfaceLayer() {
   this.worker.onmessage = this.onmessage.bind(this);
   debug("Starting Worker\n");
   this.radioState = {
-    radioState:     null,
-    cardState:      null,
+    radioState:     RIL.GECKO_RADIOSTATE_UNAVAILABLE,
+    cardState:      RIL.GECKO_CARDSTATE_UNAVAILABLE,
     connected:      null,
     roaming:        null,
     signalStrength: null,

dom/system/gonk/ril_consts.js

@@ -1123,7 +1123,7 @@ const GECKO_NETWORK_STATE_DISCONNECTING = 3;
 const GECKO_NETWORK_STATE_DISCONNECTED = 4;
 
 // Other Gecko-specific constants
-const GECKO_RADIOSTATE_UNAVAILABLE   = "unavailable";
+const GECKO_RADIOSTATE_UNAVAILABLE   = null;
 const GECKO_RADIOSTATE_OFF           = "off";
 const GECKO_RADIOSTATE_READY         = "ready";