Fail CT run_benchmark if archive_data_file is not found

tools/perf/page_sets/ct_page_set.py

Index: tools/perf/page_sets/ct_page_set.py
diff --git a/tools/perf/page_sets/ct_page_set.py b/tools/perf/page_sets/ct_page_set.py
index 97debadf91f371614f04ef9c68913788e371c1ef..7c20824abb99e23a9e7ca5c4b1a573b810e5fd55 100644
--- a/tools/perf/page_sets/ct_page_set.py
+++ b/tools/perf/page_sets/ct_page_set.py
@@ -3,6 +3,8 @@
 # found in the LICENSE file.
 
 
+import os
+
 from page_sets import repaint_helpers
 
 from telemetry.page import page as page_module
@@ -31,6 +33,9 @@ class CTPageSet(story.StorySet):
   """Page set used by CT Benchmarks."""
 
   def __init__(self, urls_list, user_agent, archive_data_file):
+    if archive_data_file and not os.path.exists(archive_data_file):
+      raise IOError('%s is not found' % archive_data_file)
+
     if user_agent == 'mobile':
       shared_page_state_class = shared_page_state.SharedMobilePageState
     elif user_agent == 'desktop':