Change experiments string to match with phenotype name.

bug:36883987
Change-Id: I005a560ea5a47abaac3385a5580c812a41e9ef0b
diff --git a/src/com/android/contacts/Experiments.java b/src/com/android/contacts/Experiments.java
index df676b0..b66311d 100644
--- a/src/com/android/contacts/Experiments.java
+++ b/src/com/android/contacts/Experiments.java
@@ -42,7 +42,7 @@
      * Flags for enabling video call from quick contact.
      */
     public static final String QUICK_CONTACT_VIDEO_CALL =
-            "QuickContact__duo_integration";
+            "QuickContact__video_call_integration";
 
     /**
      * Flags for maximum time to show spinner for a contacts sync.