Move getNetworkCountryIso impl from TM to PIM.

This moves the implementation of getNetworkCountryIso from
TelephonyManager into PhoneInterfaceManager so that we can perform an
additional IWLAN check.

Bug: 63050313
Test: no compilation errors
Merged-In: I64f31d111213281edeaeda6a09b163b860261b2d
Change-Id: I541b445b410329798acdaaaccc50955cd1574ae2
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index b5b32e4..190361b 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -1642,8 +1642,7 @@
      * @hide
      */
     public String getNetworkCountryIso(int subId) {
-        int phoneId = SubscriptionManager.getPhoneId(subId);
-        return getNetworkCountryIsoForPhone(phoneId);
+        return getNetworkCountryIsoForPhone(getPhoneId(subId));
     }
 
     /**
@@ -1658,7 +1657,14 @@
      */
     /** {@hide} */
     public String getNetworkCountryIsoForPhone(int phoneId) {
-        return getTelephonyProperty(phoneId, TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY, "");
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null)
+                return "";
+            return telephony.getNetworkCountryIsoForPhone(phoneId);
+        } catch (RemoteException ex) {
+                return "";
+        }
     }
 
     /** Network type is unknown */
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index a0e5b7b..654adb2 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -377,6 +377,13 @@
     Bundle getCellLocation(String callingPkg);
 
     /**
+     * Returns the ISO country code equivalent of the current registered
+     * operator's MCC (Mobile Country Code).
+     * @see android.telephony.TelephonyManager#getNetworkCountryIso
+     */
+    String getNetworkCountryIsoForPhone(int phoneId);
+
+    /**
      * Returns the neighboring cell information of the device.
      */
     List<NeighboringCellInfo> getNeighboringCellInfo(String callingPkg);