Pass ActionFS paths through to action-level FileOutErr for the Action's stdout/stderr.

RELNOTES: None
PiperOrigin-RevId: 200459354
diff --git a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
index 2aff663..45ac667 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
@@ -84,7 +84,7 @@
     this.artifactExpander = artifactExpander;
     this.env = env;
     this.actionFileSystem = actionFileSystem;
-    this.pathResolver = createPathResolver(actionFileSystem,
+    this.pathResolver = ArtifactPathResolver.createPathResolver(actionFileSystem,
         // executor is only ever null in testing.
         executor == null ? null : executor.getExecRoot());
   }
@@ -180,16 +180,6 @@
     return pathResolver.transformRoot(artifact.getRoot().getRoot());
   }
 
-  private static ArtifactPathResolver createPathResolver(FileSystem actionFileSystem,
-      Path execRoot) {
-    if (actionFileSystem == null) {
-      return ArtifactPathResolver.forExecRoot(execRoot);
-    } else {
-      return ArtifactPathResolver.withTransformedFileSystem(
-          actionFileSystem.getPath(execRoot.asFragment()));
-    }
-  }
-
   public ArtifactPathResolver getPathResolver() {
     return pathResolver;
   }