[Sheriff-o-matic] Use likely_revisions instead of first_failing/last_passing

Tools/GardeningServer/model/test/ct-commit-log-tests.html

 <!--
 Copyright 2014 The Chromium Authors. All rights reserved.
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 -->
 
 <link rel="import" href="../ct-commit-log.html">
 
 <link rel="import" href="../ct-commit-mock.html">
 
@@ skipping 35 matching lines @@
     var log = new CTCommitLog();
     log._handleResponse(repositoryUrl, repository, exampleCommitData);
 
     var expectedCommits = {};
     log._repositories.names.forEach(function(name) {
       expectedCommits[name] = {};
     });
     expectedCommits[repository][commit.revision] = commit;
     assert.deepEqual(log.commits, expectedCommits);
 
-    assert.deepEqual(log.range(repository, commit.revision, commit.revision), [commit]);
+    var revisions = [commit.revision];
+    assert.deepEqual(log.range(repository, revisions), [commit]);
 
-    // This url is different than the one obove because CTCommitLog gets the url
+    // This url is different than the one above because CTCommitLog gets the url
     // from CTRepositories.
     var incompleteRepositoryUrl = log._repositories.repositories[repository].repositoryUrl;
-    var incompleteCommitAfter = CTCommit.createIncomplete(incompleteRepositoryUrl, commit.revision + 1, repository);
+
+    var nextRev = String(commit.revision + 1);
+    var incompleteCommitAfter =
+        CTCommit.createIncomplete(incompleteRepositoryUrl, nextRev, repository);
+    revisions.push(nextRev);
     // Expect an incomplete commit for revision + 1.
-    assert.deepEqual(log.range(repository, commit.revision, commit.revision + 1), [commit, incompleteCommitAfter]);
+    assert.deepEqual(log.range(repository, revisions), [commit, incompleteCommitAfter]);
 
     // Expect two incomplete commits: one before and one after.
-    var incompleteCommitBefore = CTCommit.createIncomplete(incompleteRepositoryUrl, commit.revision - 1, repository);
-    assert.deepEqual(log.range(repository, commit.revision - 1, commit.revision + 1),
+    var prevRev = String(commit.revision - 1);
+    var incompleteCommitBefore =
+        CTCommit.createIncomplete(incompleteRepositoryUrl, prevRev, repository);
+    // Inserting at the beginning of the list.
+    revisions.splice(0, 0, prevRev);
+    assert.deepEqual(log.range(repository, revisions),
                      [incompleteCommitBefore, commit, incompleteCommitAfter]);
   });
 });
 
 })();
 </script>