Add load:social:instagram:2019 system health story

This CL was created automatically with tools/perf/update_wpr script

R=perezju@chromium.org

Change-Id: If01ba7806eeed18598ba5e449c35803af5452665
Bug: 878390
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1813307Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Auto-Submit: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698959}

tools/perf/page_sets/data/system_health_mobile.json

@@ -258,6 +258,9 @@
         "load:social:instagram": {
             "DEFAULT": "system_health_mobile_001.wprgo"
         },
+        "load:social:instagram:2019": {
+            "DEFAULT": "system_health_mobile_71bac3270a.wprgo"
+        },
         "load:social:pinterest": {
             "DEFAULT": "system_health_mobile_001.wprgo"
         },

tools/perf/page_sets/data/system_health_mobile_71bac3270a.wprgo.sha1

+71bac3270a61abec13028982d17b228db59b9d4b
\ No newline at end of file

tools/perf/page_sets/system_health/loading_stories.py

@@ -134,6 +134,11 @@ class LoadInstagramDesktopStory2018(_LoadingStory):
   TAGS = [story_tags.YEAR_2018]
   SUPPORTED_PLATFORMS = platforms.DESKTOP_ONLY
 
+class LoadInstagramMobileStory2019(_LoadingStory):
+  NAME = 'load:social:instagram:2019'
+  URL = 'https://www.instagram.com/selenagomez/'
+  TAGS = [story_tags.YEAR_2019]
+  SUPPORTED_PLATFORMS = platforms.MOBILE_ONLY
 
 class LoadPinterestStory(_LoadingStory):
   NAME = 'load:social:pinterest'