Install test scripts into chroot.

au_test_harness/vm_au_worker.py

Index: au_test_harness/vm_au_worker.py
diff --git a/au_test_harness/vm_au_worker.py b/au_test_harness/vm_au_worker.py
index 9788fddcb27e8cdf2132a4353060205c3d95bbd5..aba034c54ef5f3342eeff353f0f1ec0f7efbc2e7 100644
--- a/au_test_harness/vm_au_worker.py
+++ b/au_test_harness/vm_au_worker.py
@@ -103,8 +103,9 @@ class VMAUWorker(au_worker.AUWorker):
     (_, _, log_directory_in_chroot) = log_directory.rpartition('chroot')
     # image_to_live already verifies lsb-release matching.  This is just
     # for additional steps.
-    commandWithArgs = ['%s/cros_run_vm_test' % self.crosutilsbin,
-                       '--image_path=%s' % self.vm_image_path,
+    commandWithArgs = ['cros_run_vm_test',
+                       '--image_path=%s' % cros_lib.ReinterpretPathForChroot(
+                           self.vm_image_path),
                        '--snapshot',
                        '--persist',
                        '--kvm_pid=%s' % self._kvm_pid_file,
@@ -114,7 +115,8 @@ class VMAUWorker(au_worker.AUWorker):
                       ]
     if self.graphics_flag: commandWithArgs.append(self.graphics_flag)
     output = cros_lib.RunCommand(commandWithArgs, error_ok=True,
-                                 enter_chroot=False, redirect_stdout=True)
+                                 enter_chroot=True, redirect_stdout=True,
+                                 cwd=self.crosutils)
     return self.AssertEnoughTestsPassed(unittest, output,
                                         percent_required_to_pass)