Don't use file ID of the removed photo

Doc https://goto.google.com/removedphoto

Bug 25978539

Change-Id: I77abbc11766a570eb657a3b02ef910b3fa300f45
diff --git a/src/com/android/contacts/editor/EditorUiUtils.java b/src/com/android/contacts/editor/EditorUiUtils.java
index a513be5..b87d4f4 100644
--- a/src/com/android/contacts/editor/EditorUiUtils.java
+++ b/src/com/android/contacts/editor/EditorUiUtils.java
@@ -240,7 +240,9 @@
     /** Returns the {@link Photo#PHOTO_FILE_ID} from the given ValuesDelta. */
     public static Long getPhotoFileId(ValuesDelta valuesDelta) {
         if (valuesDelta == null) return null;
-        if (valuesDelta.getAfter() == null || valuesDelta.getAfter().get(Photo.PHOTO) == null) {
+        // 1. There's no "after", we want to obtain the value of Photo.PHOTO_FILE_ID from "before".
+        // 2. There's a "after", we want to obtain the value of Photo.PHOTO_FILE_ID from "after".
+        if (valuesDelta.getAfter().size() == 0 || valuesDelta.getAfter().get(Photo.PHOTO) != null) {
             return valuesDelta.getAsLong(Photo.PHOTO_FILE_ID);
         }
         return null;