Support filling in baselines from other platforms in rebaseline-cl.

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py b/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py
index 9482025ce2de81c68fda5c6e018dddb9032781a6..4b100f13dc89a66216727acb25e8ed5b64ca3435 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py
@@ -175,6 +175,12 @@ class TestBaselineSet(object):
                 '\n  '.join('%s: %s, %s' % triple for triple in self._iter_combinations()) +
                 '>')
 
+    def test_prefixes(self):
+        return sorted(self._test_prefix_map)
+
+    def build_port_pairs(self, test_prefix):
+        return self._test_prefix_map[test_prefix]

[wkorman, 2017/04/10 20:12:27]

Should we make a defensive copy so that if caller mutates the result it doesn't
hose internals?

[qyearsley, 2017/04/10 23:52:09]

Ah, good point :-) Done.

+
     def add(self, test_prefix, build, port_name=None):
         """Adds an entry for baselines to download for some set of tests.