Adds an action-scoped filesystem.

PiperOrigin-RevId: 195973862
diff --git a/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java b/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java
index b327612..e80ec31 100644
--- a/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java
+++ b/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java
@@ -185,7 +185,10 @@
     ActionExecutionStatusReporter statusReporter =
         ActionExecutionStatusReporter.create(new StoredEventHandler());
     final SkyframeActionExecutor skyframeActionExecutor =
-        new SkyframeActionExecutor(actionKeyContext, new AtomicReference<>(statusReporter));
+        new SkyframeActionExecutor(
+            actionKeyContext,
+            new AtomicReference<>(statusReporter),
+            /*usesActionFileSystem=*/ () -> false);
 
     Path actionOutputBase = scratch.dir("/usr/local/google/_blaze_jrluser/FAKEMD5/action_out/");
     skyframeActionExecutor.setActionLogBufferPathGenerator(