Gerrit: git cl set-commit -d: don't spam reviwers/owner.

R=sergiyb@chromium.org,machenbach@chromium.org
BUG=

Change-Id: Ia89e91479c22adeebc85a4432cd9f7b8d95a8fde
Reviewed-on: https://chromium-review.googlesource.com/418655Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>

git_cl.py

@@ -3023,8 +3023,11 @@ class _GerritChangelistImpl(_ChangelistCodereviewBase):
         _CQState.DRY_RUN: 1,
         _CQState.COMMIT : 2,
     }
-    gerrit_util.SetReview(self._GetGerritHost(), self.GetIssue(),
-                          labels={'Commit-Queue': vote_map[new_state]})
+    kwargs = {'labels': {'Commit-Queue': vote_map[new_state]}}
+    if new_state == _CQState.DRY_RUN:
+      # Don't spam everybody reviewer/owner.
+      kwargs['notify'] = 'NONE'
+    gerrit_util.SetReview(self._GetGerritHost(), self.GetIssue(), **kwargs)
 
   def CannotTriggerTryJobReason(self):
     try:

tests/git_cl_test.py

@@ -2051,10 +2051,11 @@ class TestGitCl(TestCase):
     ]
     self.assertEqual(0, git_cl.main(['set-commit']))
 
-  def _cmd_set_commit_gerrit_common(self, vote):
+  def _cmd_set_commit_gerrit_common(self, vote, notify=None):
     self.mock(git_cl.gerrit_util, 'SetReview',
-              lambda h, i, labels: self._mocked_call(
-                  ['SetReview', h, i, labels]))
+              lambda h, i, labels, notify=None:
+                  self._mocked_call(['SetReview', h, i, labels, notify]))
+
     self.calls = [
         ((['git', 'symbolic-ref', 'HEAD'],), 'feature'),
         ((['git', 'config', 'branch.feature.rietveldissue'],), CERR1),
@@ -2062,7 +2063,7 @@ class TestGitCl(TestCase):
         ((['git', 'config', 'branch.feature.gerritserver'],),
          'https://chromium-review.googlesource.com'),
         ((['SetReview', 'chromium-review.googlesource.com', 123,
-           {'Commit-Queue': vote}],), ''),
+           {'Commit-Queue': vote}, notify],), ''),
     ]
 
   def test_cmd_set_commit_gerrit_clear(self):
@@ -2070,7 +2071,7 @@ class TestGitCl(TestCase):
     self.assertEqual(0, git_cl.main(['set-commit', '-c']))
 
   def test_cmd_set_commit_gerrit_dry(self):
-    self._cmd_set_commit_gerrit_common(1)
+    self._cmd_set_commit_gerrit_common(1, notify='NONE')
     self.assertEqual(0, git_cl.main(['set-commit', '-d']))
 
   def test_cmd_set_commit_gerrit(self):