[autotest][cfm] Reduce participant count to 10 temporarily

We're running into quota issues. 10 should be fine until that is
resolved.

TEST=N/A
BUG=b:116194847

Change-Id: Idbc752915e75447941bced8d055ec29cd6529e53
Reviewed-on: https://chromium-review.googlesource.com/c/1288635
Tested-by: Denis Tosic <dtosic@google.com>
Trybot-Ready: Denis Tosic <dtosic@google.com>
Reviewed-by: Denis Tosic <dtosic@google.com>
Commit-Queue: Denis Tosic <dtosic@google.com>
diff --git a/server/site_tests/enterprise_CFM_Perf/enterprise_CFM_Perf.py b/server/site_tests/enterprise_CFM_Perf/enterprise_CFM_Perf.py
index 0ef38e9..6c0c24c 100644
--- a/server/site_tests/enterprise_CFM_Perf/enterprise_CFM_Perf.py
+++ b/server/site_tests/enterprise_CFM_Perf/enterprise_CFM_Perf.py
@@ -21,7 +21,7 @@
 _SHORT_TIMEOUT = 5
 _MEASUREMENT_DURATION_SECONDS = 10
 _TOTAL_TEST_DURATION_SECONDS = 900 # 15 minutes
-_BOT_PARTICIPANTS_COUNT = 20
+_BOT_PARTICIPANTS_COUNT = 10
 
 _DOWNLOAD_BASE = ('http://commondatastorage.googleapis.com/'
                   'chromiumos-test-assets-public/crowd/')