Disabling stories on v8.browsing_mobile

TBR=charliea@chromium.org
NOTRY=true

Bug: 853212
Change-Id: Id5f9e32f018e5cf3bcec17f49ea98738e1368eb0
Reviewed-on: https://chromium-review.googlesource.com/1102572Reviewed-by: Emily Hanley <eyaich@chromium.org>
Commit-Queue: Emily Hanley <eyaich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567671}

tools/perf/expectations.config

@@ -452,8 +452,8 @@ crbug.com/767970 [ Android_One ] v8.browsing_mobile/browse:news:cnn [ Skip ]
 [ Android_Webview ] v8.browsing_mobile/browse:chrome:omnibox [ Skip ]
 [ Android_Webview ] v8.browsing_mobile/browse:chrome:newtab [ Skip ]
 crbug.com/815175 [ Nexus_5 ] v8.browsing_mobile/browse:chrome:newtab [ Skip ]
-crbug.com/799080 [ Nexus_5X Android_Webview ] v8.browsing_mobile-future/browse:social:facebook [ Skip ]
-crbug.com/799080 [ Nexus_7 ] v8.browsing_mobile-future/browse:news:cnn [ Skip ]
+crbug.com/853212 [ Android_Webview ] v8.browsing_mobile/browse:media:youtube [ Skip ]
+crbug.com/853212 [ Android_Webview ] v8.browsing_mobile/browse:news:cnn [ Skip ]
 
 # Benchmark: v8.browsing_mobile-future
 crbug.com/714650 [ Android ] v8.browsing_mobile-future/browse:news:globo [ Skip ]
@@ -473,6 +473,8 @@ crbug.com/767970 [ Android_One ] v8.browsing_mobile-future/browse:news:cnn [ Ski
 crbug.com/803465 [ Nexus_5 ] v8.browsing_mobile-future/browse:chrome:newtab [ Skip ]
 crbug.com/799080 [ Nexus_5X Android_Webview ] v8.browsing_mobile-future/browse:social:facebook [ Skip ]
 crbug.com/799080 [ Nexus_7 ] v8.browsing_mobile-future/browse:news:cnn [ Skip ]
+crbug.com/799080 [ Nexus_5X Android_Webview ] v8.browsing_mobile-future/browse:social:facebook [ Skip ]
+crbug.com/799080 [ Nexus_7 ] v8.browsing_mobile-future/browse:news:cnn [ Skip ]
 
 # Benchmark: v8.detached_context_age_in_gc
 crbug.com/770982 [ Win ] v8.detached_context_age_in_gc/Docs_(1_open_document_tab) [ Skip ]