Merge "DisplayContent: Don't force-update parent if layering didn't change" into tm-dev am: 724c3547ec

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17436026

Change-Id: Ib26431b20a2bc860c2b18f224f1e38e3e1b83a3b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/core/java/com/android/server/wm/DisplayContent.java

@@ -3978,6 +3978,7 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
         }
 
         ProtoLog.i(WM_DEBUG_IME, "setInputMethodTarget %s", target);
+        final boolean layeringTargetChanged = target != mImeLayeringTarget;
         mImeLayeringTarget = target;
 
         // 1. Reparent the IME container window to the target root DA to get the correct bounds and
@@ -4005,7 +4006,7 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
         // 4. Update the IME control target to apply any inset change and animation.
         // 5. Reparent the IME container surface to either the input target app, or the IME window
         // parent.
-        updateImeControlTarget(true /* forceUpdateImeParent */);
+        updateImeControlTarget(layeringTargetChanged);
     }
 
     @VisibleForTesting