[benchmarking] linux-perf-fyi stop uploading perf data

Stop uploading perf data to perf dashboard on linux fyi.
This is part of moving the upload workflow to the new VM.

Bug: chromium:1045256
Change-Id: Ifb09b5ff12a56254c18edf41038f3952f03518ce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2132961
Commit-Queue: Wenbin Zhang <wenbinzhang@google.com>
Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756308}

testing/buildbot/chromium.perf.fyi.json

@@ -203,6 +203,9 @@
         ],
         "isolate_name": "performance_test_suite",
         "merge": {
+          "args": [
+            "--skip-perf"
+          ],
           "script": "//tools/perf/process_perf_results.py"
         },
         "name": "performance_test_suite",

tools/perf/core/perf_data_generator.py

@@ -90,6 +90,10 @@ class TEST_TYPES(object):
 
   ALL = (GENERIC, GTEST, TELEMETRY)
 
+# This is an opt-in list for tester which will skip the perf data handling.
+# The perf data will be handled on a separated 'processor' VM.
+# This list will be removed or replace by an opt-out list.
+LIGHTWEIGHT_TESTERS = ['linux-perf-fyi']
 
 FYI_BUILDERS = {
     'android-nexus5x-perf-fyi': {
@@ -1041,6 +1045,8 @@ def generate_performance_test(tester_config, test, builder_name):
   result['merge'] = {
       'script': '//tools/perf/process_perf_results.py',
   }
+  if builder_name in LIGHTWEIGHT_TESTERS:
+    result['merge']['args'] = ['--skip-perf']
 
   result['swarming'] = {
       # Always say this is true regardless of whether the tester