Use FenceResult in ScreenCaptureResults

Bug: b/232535621
Test: existing tests pass
Change-Id: Ida9e6bed0964aed97448b4cdd60a3383a0c56b62
diff --git a/cmds/screencap/screencap.cpp b/cmds/screencap/screencap.cpp
index 7e6a521..4ed1c8e 100644
--- a/cmds/screencap/screencap.cpp
+++ b/cmds/screencap/screencap.cpp
@@ -193,7 +193,7 @@
     }
 
     ScreenCaptureResults captureResults = captureListener->waitForResults();
-    if (captureResults.result != NO_ERROR) {
+    if (!captureResults.fenceResult.ok()) {
         close(fd);
         return 1;
     }