Inline InputMethodManagerService#updateSystemUi()

This method is already called after locking with IMMS#mMethodMap.
Hence this method can be safely inlined.

This is a mechanical refactoring.  There should be no behavior change.

Bug: 34851776
Test: atest CtsInputMethodTestCases CtsInputMethodServiceHostTestCases
Change-Id: I50f8670b090183d29beebb3f26fd3238d93d41c5
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index 0c65a8a..a24373e 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -2446,12 +2446,6 @@
                 (vis & InputMethodService.IME_VISIBLE) != 0, dismissImeOnBackKeyPressed);
     }
 
-    private void updateSystemUi(IBinder token, int vis, int backDisposition) {
-        synchronized (mMethodMap) {
-            updateSystemUiLocked(token, vis, backDisposition);
-        }
-    }
-
     @BinderThread
     private void reportStartInput(IBinder token, IBinder startInputToken) {
         synchronized (mMethodMap) {
@@ -4049,7 +4043,7 @@
             attrs.privateFlags |= PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
             attrs.setTitle("Select input method");
             w.setAttributes(attrs);
-            updateSystemUi(mCurToken, mImeWindowVis, mBackDisposition);
+            updateSystemUiLocked(mCurToken, mImeWindowVis, mBackDisposition);
             mSwitchingDialog.show();
         }
     }