Make back button dismiss power dialog,
by making dialog focusable.

Test: Manual - verified back button behavior, verified outside touches still ok.
Fixes: 63855564
Change-Id: I684bd4b3f77d00d81fe56c5005ab86403670a851
diff --git a/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialog.java b/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialog.java
index ad177a7..afe2b2f 100644
--- a/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialog.java
+++ b/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialog.java
@@ -1238,8 +1238,8 @@
             window.requestFeature(Window.FEATURE_NO_TITLE);
             window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND
                     | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
-            window.addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
-                    | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
+            window.addFlags(
+                    WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
                     | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                     | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                     | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH