Fix a wrong UID can be logged

This is a prepartion for fixing Bug 34838583

Currently Binder.clearCallingIdentity() is called too early, which
ends up always blaming the system UID when calledWithValidToken()
fails in InputMethodManagerService#updateStatusIcon().

Test: Compile
Bug: 34838583
Change-Id: Id69da24de8269c0c7e31ea9ef3c595c3d69fe40e

services/core/java/com/android/server/InputMethodManagerService.java

@@ -1660,15 +1660,15 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
 
     @Override
     public void updateStatusIcon(IBinder token, String packageName, int iconId) {
-        long ident = Binder.clearCallingIdentity();
-        try {
-            synchronized (mMethodMap) {
-                if (!calledWithValidToken(token)) {
-                    final int uid = Binder.getCallingUid();
-                    Slog.e(TAG, "Ignoring updateStatusIcon due to an invalid token. uid:" + uid
-                            + " token:" + token);
-                    return;
-                }
+        synchronized (mMethodMap) {
+            if (!calledWithValidToken(token)) {
+                final int uid = Binder.getCallingUid();
+                Slog.e(TAG, "Ignoring updateStatusIcon due to an invalid token. uid:" + uid
+                        + " token:" + token);
+                return;
+            }
+            final long ident = Binder.clearCallingIdentity();
+            try {
                 if (iconId == 0) {
                     if (DEBUG) Slog.d(TAG, "hide the small icon for the input method");
                     if (mStatusBar != null) {
@@ -1693,9 +1693,9 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                         mStatusBar.setIconVisibility(mSlotIme, true);
                     }
                 }
+            } finally {
+                Binder.restoreCallingIdentity(ident);
             }
-        } finally {
-            Binder.restoreCallingIdentity(ident);
         }
     }