Perf bisect for bug 438494 on behalf of epenner@google.com

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..738bc70d34e81e8a662dfc1cfc750d14451ae499 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': '',
+  'command': 'tools/perf/run_benchmark -v --browser=android-chrome-shell rasterize_and_record_micro.key_silk_cases',
+  'good_revision': '306338',
+  'bad_revision': '306349',
+  'metric': 'record_time/record_time',
+  'repeat_count': '10',
+  'max_time_minutes': '20',
+  'truncate_percent': '25',
+  'bug_id': '438494', 
+  'gs_bucket': 'chrome-perf',
+  'builder_host': 'master4.golo.chromium.org',
+  'builder_port': '8341',
 }
 
 # Workaround git try issue, see crbug.com/257689