[Findit] Fix redirect bug and update template for waterfall/culprit.

appengine/findit/waterfall/buildbot.py

Index: appengine/findit/waterfall/buildbot.py
diff --git a/appengine/findit/waterfall/buildbot.py b/appengine/findit/waterfall/buildbot.py
index 0709671b2cdcc27543316f8ed9e0b12eb7c93096..01ffb61ee4b2fbd59fe5562d17c77456909cdb6d 100644
--- a/appengine/findit/waterfall/buildbot.py
+++ b/appengine/findit/waterfall/buildbot.py
@@ -178,10 +178,16 @@ def GetBuildStartTime(build_data_json):
   times = build_data_json.get('times')
   if not times:
     return None
-  # TODO: convert to PST time?
   return datetime.utcfromtimestamp(times[0])
 
 
+def GetBuildEndTime(build_data_json):
+  times = build_data_json.get('times')
+  if not times or len(times) < 2 or not times[1]:
+    return None
+  return datetime.utcfromtimestamp(times[1])
+
+
 def GetBuildResult(build_data_json):
   return build_data_json.get('results')
 
@@ -195,6 +201,7 @@ def ExtractBuildInfo(master_name, builder_name, build_number, build_data):
       data_json.get('properties', []), 'got_revision')
 
   build_info.build_start_time = GetBuildStartTime(data_json)
+  build_info.build_end_time = GetBuildEndTime(data_json)
   build_info.chromium_revision = chromium_revision
   build_info.completed = data_json.get('currentStep') is None
   build_info.result = GetBuildResult(data_json)