[perf] Add load:media:imgur:2018 system health story

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

R=perezju@chromium.org

Bug: 878390
Change-Id: Iaf4ac2022102652c9f5ae38a2b778f5c26620532
Reviewed-on: https://chromium-review.googlesource.com/c/1329744Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608765}

tools/perf/benchmarks/system_health_smoke_test.py

@@ -89,6 +89,7 @@ _DISABLED_TESTS = frozenset({
   'system_health.memory_desktop/load:games:spychase',
   'system_health.memory_desktop/load:media:flickr',
   'system_health.memory_desktop/load:media:google_images',
+  'system_health.memory_desktop/load:media:imgur',
   'system_health.memory_desktop/load:media:soundcloud',
   'system_health.memory_desktop/load:news:cnn',
   'system_health.memory_desktop/load:news:wikipedia',
@@ -103,6 +104,7 @@ _DISABLED_TESTS = frozenset({
   'system_health.memory_mobile/load:games:spychase',
   'system_health.memory_mobile/load:media:flickr',
   'system_health.memory_mobile/load:media:google_images',
+  'system_health.memory_mobile/load:media:imgur',
   'system_health.memory_mobile/load:news:wikipedia',
   'system_health.memory_mobile/load:search:baidu',
   'system_health.memory_mobile/load:search:ebay',

tools/perf/page_sets/data/system_health_desktop.json

@@ -159,6 +159,9 @@
         "load:media:imgur": {
             "DEFAULT": "system_health_desktop_025.wprgo"
         },
+        "load:media:imgur:2018": {
+            "DEFAULT": "system_health_desktop_de90b5422c.wprgo"
+        },
         "load:media:soundcloud": {
             "DEFAULT": "system_health_desktop_003.wprgo"
         },

tools/perf/page_sets/data/system_health_desktop_de90b5422c.wprgo.sha1

+de90b5422c2421d0b2c2c939a72b78b4c86df145
\ No newline at end of file

tools/perf/page_sets/data/system_health_mobile.json

@@ -144,6 +144,9 @@
         "load:media:imgur": {
             "DEFAULT": "system_health_mobile_035.wprgo"
         },
+        "load:media:imgur:2018": {
+            "DEFAULT": "system_health_mobile_f78afe9f96.wprgo"
+        },
         "load:media:soundcloud": {
             "DEFAULT": "system_health_mobile_003.wprgo"
         },

tools/perf/page_sets/data/system_health_mobile_f78afe9f96.wprgo.sha1

+f78afe9f9647415839897ada9756bfc7b2c36a82
\ No newline at end of file

tools/perf/page_sets/system_health/loading_stories.py

@@ -401,6 +401,12 @@ class LoadImgurStory(_LoadingStory):
   TAGS = [story_tags.HEALTH_CHECK, story_tags.YEAR_2016]
 
 
+class LoadImgurStory2018(_LoadingStory):
+  NAME = 'load:media:imgur:2018'
+  URL = 'http://imgur.com/gallery/5UlBN'
+  TAGS = [story_tags.HEALTH_CHECK, story_tags.YEAR_2018]
+
+
 class LoadFlickrStory2018(_LoadingStory):
   NAME = 'load:media:flickr:2018'
   URL = 'https://www.flickr.com/photos/tags/noiretblanc'