Use framework scheme definitions

Use PhoneAccount defined values for SCHEME_{TEL, SIP, VOICEMAIL}.

Bug:17398074
Change-Id: I798561791f094c8961dfe54dd9019af9a63b4769
diff --git a/src/com/android/contacts/NonPhoneActivity.java b/src/com/android/contacts/NonPhoneActivity.java
index 4f0696f..bab3977 100644
--- a/src/com/android/contacts/NonPhoneActivity.java
+++ b/src/com/android/contacts/NonPhoneActivity.java
@@ -27,10 +27,9 @@
 import android.os.Bundle;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.Intents.Insert;
+import android.telecomm.PhoneAccount;
 import android.text.TextUtils;
 
-import com.android.contacts.common.CallUtil;
-
 /**
  * Activity that intercepts DIAL and VIEW intents for phone numbers for devices that can not
  * be used as a phone. This allows the user to see the phone number
@@ -60,7 +59,7 @@
         final Uri data = getIntent().getData();
         if (data == null) return null;
         final String scheme = data.getScheme();
-        if (!CallUtil.SCHEME_TEL.equals(scheme)) return null;
+        if (!PhoneAccount.SCHEME_TEL.equals(scheme)) return null;
         return getIntent().getData().getSchemeSpecificPart();
     }