Add dismissImmediate to ListPopupWindow to prevent window leaks in GlobalActionsDialog.

Fixes: 154640131
Test: Manual -- Use 'adb shell dumpsys window windows || grep "PopupWindow"' to confirm number of PopupWindows displayed (should be zero at home screen.)
Open GlobalActions. Tap the power overflow menu and check number of PopupWindows while the overflow dropdown is visible (should be 1).
Put the phone to sleep by pressing the power button. Wake phone and make sure number of PopupWindows is 0.
Repeat with Controls structure switcher dropdown and add controls dropdown.

Change-Id: I4ae2d86e981465e8e6c0adf924a6fc2eabfc88ee

1 files changed, 9 insertions, 0 deletions

diff --git a/core/java/android/widget/ListPopupWindow.java b/core/java/android/widget/ListPopupWindow.java
index 6425cf11ccb3..4311ffbe0e95 100755
--- a/core/java/android/widget/ListPopupWindow.java
+++ b/core/java/android/widget/ListPopupWindow.java
@@ -746,6 +746,15 @@ public class ListPopupWindow implements ShowableListMenu {
     }
 
     /**
+     * Remove existing exit transition from PopupWindow and force immediate dismissal.
+     * @hide
+     */
+    public void dismissImmediate() {
+        mPopup.setExitTransition(null);
+        dismiss();
+    }
+
+    /**
      * Set a listener to receive a callback when the popup is dismissed.
      *
      * @param listener Listener that will be notified when the popup is dismissed.