Notify policy of untrusted touch for toast

Notify policy when an untrusted touch happens with the obscuring package
so we can show a toast in topic CL.

Test: Enable feature, draw overlay, verify toast appears
Test: atest WindowUntrustedTouchTest WindowInputTests inputflinger_tests
      inputflinger_benchmarks libinput_tests libgui_test
Bug: 158002302
Change-Id: Ief4a048128efc52b505a1a8c60aa2240a196f254
diff --git a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
index 46bc055..b00364d 100644
--- a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
+++ b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
@@ -57,6 +57,8 @@
 
     void notifyFocusChanged(const sp<IBinder>&, const sp<IBinder>&) override {}
 
+    void notifyUntrustedTouch(const std::string& obscuringPackage) override {}
+
     void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) override {
         *outConfig = mConfig;
     }