Create desktop windowing aconfig and add scaled resizing flag

Fixes: 320282857
Fixes: 320350734
Test: build
Change-Id: I0e341f9f35cb8a097fa8a11506f7adb68209fb7f
diff --git a/core/java/android/window/flags/lse_desktop_experience.aconfig b/core/java/android/window/flags/lse_desktop_experience.aconfig
new file mode 100644
index 0000000..4e86616
--- /dev/null
+++ b/core/java/android/window/flags/lse_desktop_experience.aconfig
@@ -0,0 +1,9 @@
+package: "com.android.window.flags"
+
+flag {
+    name: "enable_scaled_resizing"
+    namespace: "lse_desktop_experience"
+    description: "Enable the resizing of un-resizable apps through scaling their bounds up/down"
+    bug: "320350734"
+    is_fixed_read_only: true
+}