Merge "Service Gesture Detection: don't lock when executing double tap in the framework." into tm-dev am: a100d07018

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17324001

Change-Id: I0b2af019f7438f99f0dae33f395f07dc9209d73d

services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java

@@ -4290,11 +4290,15 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
     }
 
     private void onDoubleTapInternal(int displayId) {
+        AccessibilityInputFilter inputFilter = null;
         synchronized (mLock) {
             if (mHasInputFilter && mInputFilter != null) {
-                mInputFilter.onDoubleTap(displayId);
+                inputFilter = mInputFilter;
             }
         }
+        if (inputFilter != null) {
+            inputFilter.onDoubleTap(displayId);
+        }
     }
 
     @Override