[tools/perf] Move system_health_stories to system_health.loading_stories module

tools/perf/page_sets/system_health/loading_stories.py

Index: tools/perf/page_sets/system_health/loading_stories.py
diff --git a/tools/perf/page_sets/system_health_stories.py b/tools/perf/page_sets/system_health/loading_stories.py
similarity index 98%
rename from tools/perf/page_sets/system_health_stories.py
rename to tools/perf/page_sets/system_health/loading_stories.py
index 3a2a5ded71ded0fc6caaa01e2ee5681aedf8ed28..96e6a4f9d8d053ee5e2f3c3173ca789c1b455079 100644
--- a/tools/perf/page_sets/system_health_stories.py
+++ b/tools/perf/page_sets/system_health/loading_stories.py
@@ -293,7 +293,7 @@ class _LoadCase(page_module.Page):
     name = 'load:%s:%s' % (group, page_spec.name)
     super(_LoadCase, self).__init__(
         page_set=story_set, name=name, url=url,
-        credentials_path='data/credentials.json',
+        credentials_path='../data/credentials.json',
         grouping_keys={'case': 'load', 'group': group})
     self._page_spec = page_spec
 
@@ -335,7 +335,8 @@ class _MemorySystemHealthStorySet(story.StorySet):
 
   def __init__(self):
     super(_MemorySystemHealthStorySet, self).__init__(
-        archive_data_file='data/memory_system_health_%s.json' % self.PLATFORM,
+        archive_data_file=('../data/memory_system_health_%s.json' %
+                           self.PLATFORM),
         cloud_storage_bucket=story.PARTNER_BUCKET)
 
     for group_name, page_specs in _SINGLE_PAGE_SPECS.iteritems():