Perf bisect for bug 486445 on behalf of None

tools/auto_bisect/bisect.cfg

Index: tools/auto_bisect/bisect.cfg
diff --git a/tools/auto_bisect/bisect.cfg b/tools/auto_bisect/bisect.cfg
index 25323ff2c03be61ff1f80a341e7bef617cc97e0c..c011c170e6011e05ef2838402373f1cbc42384f3 100644
--- a/tools/auto_bisect/bisect.cfg
+++ b/tools/auto_bisect/bisect.cfg
@@ -44,13 +44,17 @@
 """
 
 config = {
-  'command': '',
-  'good_revision': '',
-  'bad_revision': '',
-  'metric': '',
-  'repeat_count': '',
-  'max_time_minutes': '',
-  'truncate_percent': '',
+  "bad_revision": "329011",
+  "bisect_mode": "mean",
+  "bug_id": "486445",
+  "builder_type": "perf",
+  "command": "python tools/perf/run_benchmark -v --browser=release startup.cold.blank_page",
+  "good_revision": "328995",
+  "max_time_minutes": "20",
+  "metric": "first_main_frame_load_time/first_main_frame_load_time",
+  "repeat_count": "10",
+  "target_arch": "ia32",
+  "truncate_percent": "25"
 }
 
 # Workaround git try issue, see crbug.com/257689