Revert "Revert "Binder.restoreCallingIdentity moved from 'catch' to 'finally' block.""

This reverts commit a6573a641c.

Reason for revert: Reverting the revert, since it wasn't the culprit

Change-Id: I76a92f4a4fad3c1880d8767f91fd5c47631d5069

services/core/java/com/android/server/wallpaper/WallpaperManagerService.java

@@ -1549,8 +1549,9 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
                     try {
                         mReply.sendResult(null);
                     } catch (RemoteException e) {
-                        Binder.restoreCallingIdentity(ident);
                         Slog.d(TAG, "failed to send callback!", e);
+                    } finally {
+                        Binder.restoreCallingIdentity(ident);
                     }
                     mReply = null;
                 }