SurfaceFlinger: rename FrameTimeline's setActualEndTime

Rename setActualEndTime to setAcquireFenceTime to better reflect what
the method keeps track of.

Change-Id: I1865a48d0cc4fbb55c4ec0fe2ff172fd31735ccb
Test: SF unit tests
diff --git a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
index 85d2834..617f95a 100644
--- a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
+++ b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
@@ -217,4 +217,20 @@
               true);
 }
 
+TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceAfterQueue) {
+    auto surfaceFrame =
+            mFrameTimeline->createSurfaceFrameForToken("acquireFenceAfterQueue", std::nullopt);
+    surfaceFrame->setActualQueueTime(123);
+    surfaceFrame->setAcquireFenceTime(456);
+    EXPECT_EQ(surfaceFrame->getActuals().endTime, 456);
+}
+
+TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceBeforeQueue) {
+    auto surfaceFrame =
+            mFrameTimeline->createSurfaceFrameForToken("acquireFenceAfterQueue", std::nullopt);
+    surfaceFrame->setActualQueueTime(456);
+    surfaceFrame->setAcquireFenceTime(123);
+    EXPECT_EQ(surfaceFrame->getActuals().endTime, 456);
+}
+
 } // namespace android::frametimeline