Make sure no handlers have id = 0

Otherwise the proto parser complains that a required field is missing since 0 or missing is equivalent when dump to proto

Test: load these traces in Winscope where the proto parser complains about this

Bug: 277181336
Change-Id: I39dc1ca5506a18dd4f6931510808d7ba89927a93

libs/WindowManager/Shell/src/com/android/wm/shell/transition/Tracer.java

@@ -73,7 +73,8 @@ public class Tracer implements ShellCommandHandler.ShellCommandActionHandler {
         if (mHandlerIds.containsKey(handler)) {
             handlerId = mHandlerIds.get(handler);
         } else {
-            handlerId = mHandlerIds.size();
+            // + 1 to avoid 0 ids which can be confused with missing value when dumped to proto
+            handlerId = mHandlerIds.size() + 1;
             mHandlerIds.put(handler, handlerId);
         }