[autotest] fix test_{droid,that} --pretend.

BUG=b:27043786,chromium:586833
TEST=test_that and test_droid runs.

Change-Id: I0de93498e3d05db8bd30753d166bf7b7e7e3f486
Reviewed-on: https://chromium-review.googlesource.com/328713
Commit-Ready: Simran Basi <sbasi@chromium.org>
Tested-by: Simran Basi <sbasi@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Kevin Cheng <kevcheng@chromium.org>
diff --git a/site_utils/test_droid.py b/site_utils/test_droid.py
index 0e280c6..d0ab48d 100755
--- a/site_utils/test_droid.py
+++ b/site_utils/test_droid.py
@@ -121,7 +121,7 @@
                     results_directory=results_directory,
                     iterations=arguments.iterations,
                     fast_mode=arguments.fast_mode, debug=arguments.debug,
-                    host_attributes=host_attributes)
+                    host_attributes=host_attributes, pretend=arguments.pretend)
     finally:
         if fb_service is not None:
             fb_service.stop()
diff --git a/site_utils/test_that.py b/site_utils/test_that.py
index 7f66511..c6facb0 100755
--- a/site_utils/test_that.py
+++ b/site_utils/test_that.py
@@ -296,7 +296,8 @@
                 ssh_options=arguments.ssh_options,
                 iterations=arguments.iterations,
                 fast_mode=arguments.fast_mode, debug=arguments.debug,
-                whitelist_chrome_crashes=arguments.whitelist_chrome_crashes)
+                whitelist_chrome_crashes=arguments.whitelist_chrome_crashes,
+                pretend=arguments.pretend)
 
 
 def _main_for_lab_run(argv, arguments):