Fix issue keeping Go recents view GONE

Go recents view was always GONE before. This is because Go was missing
logic in its CONTENT_ALPHA property to set visibility on appropriate
alpha changes. This CL fixes this.

Bug: 114136250
Test: Manual test and see the view is there
Change-Id: I45fea6d695b9b3154be9d2e6fae25ca8a8aa288e
diff --git a/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java b/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
index ae8166c..00415fe 100644
--- a/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
+++ b/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
@@ -51,6 +51,11 @@
                 @Override
                 public void setValue(IconRecentsView view, float v) {
                     ALPHA.set(view, v);
+                    if (view.getVisibility() != VISIBLE && v > 0) {
+                        view.setVisibility(VISIBLE);
+                    } else if (view.getVisibility() != GONE && v == 0){
+                        view.setVisibility(GONE);
+                    }
                 }
 
                 @Override