Default shell_starting_surface to true to match platform behavior.

Bug: 177264697
Test: manual, cold/warm app launches
Change-Id: I0b2f080ddc234f7b9f1432bb8cd80f85c176bc7a
diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index 009ca27..b72cf39 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -110,7 +110,7 @@
     private static final String TAG = "QuickstepTransition";
 
     private static final boolean ENABLE_SHELL_STARTING_SURFACE =
-            SystemProperties.getBoolean("persist.debug.shell_starting_surface", false);
+            SystemProperties.getBoolean("persist.debug.shell_starting_surface", true);
 
     /** Duration of status bar animations. */
     public static final int STATUS_BAR_TRANSITION_DURATION = 120;