Split VsyncEventData from DisplayEventDispatcher.

Bug: 205721584
Test: atest libsurfaceflinger_unittest
Change-Id: I51b18ed356ae7a29f8a88634346c0025321dbe08
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index 57cb5cf..7761828 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -257,7 +257,7 @@
     ASSERT_TRUE(args.has_value()) << " did not receive an event for timestamp "
                                   << expectedTimestamp;
     const auto& event = std::get<0>(args.value());
-    for (int i = 0; i < DisplayEventReceiver::kFrameTimelinesLength; i++) {
+    for (int i = 0; i < gui::VsyncEventData::kFrameTimelinesLength; i++) {
         auto prediction =
                 mTokenManager->getPredictionsForToken(event.vsync.frameTimelines[i].vsyncId);
         EXPECT_TRUE(prediction.has_value());