[Fuchsia] Change result and filter file locations

Change the location on Fuchsia target where result and filter files are stored.
Remove unused flag --target-staging-path.

Bug: fuchsia:47956
Change-Id: Ic8068dcdd48654e672251b76047fcb9b69f9a8b6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2499371Reviewed-by: Wez <wez@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Auto-Submit: Chong Gu <chonggu@google.com>
Cr-Commit-Position: refs/heads/master@{#821454}

build/fuchsia/common_args.py

@@ -100,9 +100,6 @@ def AddCommonArgs(arg_parser):
       help='Name of the package to execute, defined in ' + 'package metadata.')
 
   common_args = arg_parser.add_argument_group('common', 'Common arguments')
-  common_args.add_argument('--target-staging-path',
-                           help='target path under which to stage packages '
-                           'during deployment.', default='/data')
   common_args.add_argument('--runner-logs-dir',
                            help='Directory to write test runner logs to.')
   common_args.add_argument('--exclude-system-logs',

build/fuchsia/test_runner.py

@@ -20,9 +20,10 @@ from symbolizer import BuildIdsPaths
 
 DEFAULT_TEST_SERVER_CONCURRENCY = 4
 
-TEST_RESULT_PATH = '/data/test_summary.json'
-TEST_PERF_RESULT_PATH = '/data/test_perf_summary.json'
-TEST_FILTER_PATH = '/data/test_filter.txt'
+TEST_DATA_DIR = '/tmp'
+TEST_RESULT_PATH = TEST_DATA_DIR + '/test_summary.json'
+TEST_PERF_RESULT_PATH = TEST_DATA_DIR + '/test_perf_summary.json'
+TEST_FILTER_PATH = TEST_DATA_DIR + '/test_filter.txt'
 
 TEST_REALM_NAME = 'chromium_tests'