Use DISPLAY_CATEGORY_ALL_INCLUDING_DISABLED for getDisplays

Bug: 227459045
Bug: 221071695
Test: manual
Change-Id: I8c1587e05a30abf75a01a84ebda6522606abb99b

src/com/android/launcher3/util/window/WindowManagerProxy.java

@@ -90,7 +90,7 @@ public class WindowManagerProxy implements ResourceBasedOverride {
      */
     public ArrayMap<String, Pair<CachedDisplayInfo, WindowBounds[]>> estimateInternalDisplayBounds(
             Context context) {
-        Display[] displays = context.getSystemService(DisplayManager.class).getDisplays();
+        Display[] displays = getDisplays(context);
         ArrayMap<String, Pair<CachedDisplayInfo, WindowBounds[]>> result = new ArrayMap<>();
         for (Display display : displays) {
             if (isInternalDisplay(display)) {
@@ -355,4 +355,11 @@ public class WindowManagerProxy implements ResourceBasedOverride {
         }
         return d.getRotation();
     }
+
+    /**
+     * Returns all currently valid logical displays.
+     */
+    protected Display[] getDisplays(Context context) {
+        return context.getSystemService(DisplayManager.class).getDisplays();
+    }
 }