Use input token in PointerCaptureRequest

Instead of sending boolean to indicate the capture state,
InputDispatcher now sends an input window token that requests a
pointer capture, or nullptr otherwise.

This is useful for some InputReader implementations.
Also, this token can be used to verify if a pointer capture changed
event from a reader is valid.

Bug: 259346762
Bug: 301628662
Test: inputflinger_tests
Test: android.view.cts.PointerCaptureTest WindowFocusTests#testPointerCapture
Change-Id: Ie8343db6744dc2080f7f1dcff5a630be5c87fa3e
diff --git a/services/inputflinger/PointerChoreographer.cpp b/services/inputflinger/PointerChoreographer.cpp
index 9db3574..916f8c6 100644
--- a/services/inputflinger/PointerChoreographer.cpp
+++ b/services/inputflinger/PointerChoreographer.cpp
@@ -277,7 +277,7 @@
 
 void PointerChoreographer::notifyPointerCaptureChanged(
         const NotifyPointerCaptureChangedArgs& args) {
-    if (args.request.enable) {
+    if (args.request.isEnable()) {
         std::scoped_lock _l(mLock);
         for (const auto& [_, mousePointerController] : mMousePointersByDisplay) {
             mousePointerController->fade(PointerControllerInterface::Transition::IMMEDIATE);