[Findit] Adding metadata for manually vs automatically triggered flake analyses

appengine/findit/handlers/flake/check_flake.py

Index: appengine/findit/handlers/flake/check_flake.py
diff --git a/appengine/findit/handlers/flake/check_flake.py b/appengine/findit/handlers/flake/check_flake.py
index 4e23f629df1cf44f2b2424c4509dc87b33da8bcf..2396879d8253d17d7b7f3a4aed1c3af72d5482ae 100644
--- a/appengine/findit/handlers/flake/check_flake.py
+++ b/appengine/findit/handlers/flake/check_flake.py
@@ -2,8 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from google.appengine.api import users
-
 from common import auth_util
 from common import constants
 from common import time_util
@@ -11,6 +9,7 @@ from common.base_handler import BaseHandler
 from common.base_handler import Permission
 from model import analysis_status
 from waterfall.flake import initialize_flake_pipeline
+from waterfall.flake import triggering_sources
 
 
 class CheckFlake(BaseHandler):
@@ -32,9 +31,12 @@ class CheckFlake(BaseHandler):
              self.request.get('force') == '1')
     allow_new_analysis = self.IsCorpUserOrAdmin()
 
+    # TODO(lijeffrey): Use flake_analysis_service.ScheduleAnalysisForFlake.
+    user_email = auth_util.GetUserEmail()
     analysis = initialize_flake_pipeline.ScheduleAnalysisIfNeeded(
         master_name, builder_name, build_number, step_name, test_name,
         allow_new_analysis, force=force, manually_triggered=True,
+        user_email=user_email, triggering_source=triggering_sources.FINDIT_UI,
         queue_name=constants.WATERFALL_ANALYSIS_QUEUE)
 
     if not analysis:  # pragma: no cover.