[bisect] - First pass bisect functional breakages.

tools/run-bisect-perf-regression.py

Index: tools/run-bisect-perf-regression.py
diff --git a/tools/run-bisect-perf-regression.py b/tools/run-bisect-perf-regression.py
index ba3a6c8b281298ac765adaa41f4eb244692b0cd3..26c7d3dc598c2c66676de25391080ffffaf10986 100755
--- a/tools/run-bisect-perf-regression.py
+++ b/tools/run-bisect-perf-regression.py
@@ -367,6 +367,9 @@ def _RunBisectionScript(config, working_directory, path_to_file, path_to_goma,
   if config['max_time_minutes']:
     cmd.extend(['--max_time_minutes', config['max_time_minutes']])
 
+  if config.has_key('bisect_mode'):
+    cmd.extend(['--bisect_mode', config['bisect_mode']])
+
   cmd.extend(['--build_preference', 'ninja'])
 
   if '--browser=cros' in config['command']: