Fix issue with entering '+' with switch access

Distinguish between a manual long press and system long
press (via accessibility) when modifying the current
dial string.

Bug: 23554996
Change-Id: I3fc610c8e24bdb39729b827715e08a3e7d73ba1f
diff --git a/src/com/android/dialer/DialtactsActivity.java b/src/com/android/dialer/DialtactsActivity.java
index 0893b1c..140437e 100644
--- a/src/com/android/dialer/DialtactsActivity.java
+++ b/src/com/android/dialer/DialtactsActivity.java
@@ -16,6 +16,8 @@
 
 package com.android.dialer;
 
+import com.google.common.annotations.VisibleForTesting;
+
 import android.app.Fragment;
 import android.app.FragmentTransaction;
 import android.content.ActivityNotFoundException;
@@ -128,7 +130,8 @@
     private static final String KEY_FIRST_LAUNCH = "first_launch";
     private static final String KEY_IS_DIALPAD_SHOWN = "is_dialpad_shown";
 
-    private static final String TAG_DIALPAD_FRAGMENT = "dialpad";
+    @VisibleForTesting
+    public static final String TAG_DIALPAD_FRAGMENT = "dialpad";
     private static final String TAG_REGULAR_SEARCH_FRAGMENT = "search";
     private static final String TAG_SMARTDIAL_SEARCH_FRAGMENT = "smartdial";
     private static final String TAG_FAVORITES_FRAGMENT = "favorites";