Improve systemui unlockscreen jank issue

- In VisualStabilityCoordinator, ensure sure setting
  mPipelineRunAllowedis false when the notification is not visible
  after unlock to avoid unnecessary building notification list that
  blocks the UI thread
- Send notifyRendererOfExpensiveFrame to raise CPU work load when
  drawing notification shade window
- Refining WindowRootView#applyMargins performance to layout at once
  after all children's margins has updated

Flag: com.android.systemui.check_lockscreen_gone_transition
Bug: 358301118
Test: atest VisualStabilityCoordinatorTest
Test: run PTS cuj test for testing sysui unlock screen by local command
     ./sysui_unlockscreen.sh -i 5 -w
Change-Id: I61f1dad2dc9485f043c53a8900f1fae2e8ea1187
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index b57629f..391a272 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -1446,3 +1446,13 @@
        purpose: PURPOSE_BUGFIX
    }
 }
+
+flag {
+   name: "check_lockscreen_gone_transition"
+   namespace: "systemui"
+   description: "Run notification pipeline when the lockscreen is not in gone transition for avoiding janky frames during unlocking animation"
+   bug: "358301118"
+   metadata {
+       purpose: PURPOSE_BUGFIX
+   }
+}