Add lookup key to callerInfo

Bug: 16825519
Change-Id: I71c4b2366caa3351b1f2cedd1c341f9ac909b7ea

telephony/java/com/android/internal/telephony/CallerInfo.java

@@ -100,6 +100,7 @@ public class CallerInfo {
     public long contactIdOrZero;
     public boolean needUpdate;
     public Uri contactRefUri;
+    public String lookupKey;
 
     /**
      * Contact display photo URI.  If a contact has no display photo but a thumbnail, it'll be
@@ -231,6 +232,12 @@ public class CallerInfo {
                     // the in-call UI, for example.)
                 }
 
+                // Contact lookupKey
+                columnIndex = cursor.getColumnIndex(PhoneLookup.LOOKUP_KEY);
+                if (columnIndex != -1) {
+                    info.lookupKey = cursor.getString(columnIndex);
+                }
+
                 // Display photo URI.
                 columnIndex = cursor.getColumnIndex(PhoneLookup.PHOTO_URI);
                 if ((columnIndex != -1) && (cursor.getString(columnIndex) != null)) {