[tools/perf] Disable consistently failing stories on Pixel 2

Disabling the following storie currently showing consistent failures on
android-pixel2-perf bot.

TBR=nednguyen@google.com
NOTRY=true

Bug: 865400
Change-Id: I0df6999497e00abfd71bbd00e98a1e274b347aad
Reviewed-on: https://chromium-review.googlesource.com/1179751Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Commit-Queue: Juan Antonio Navarro Pérez <perezju@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584029}

tools/perf/expectations.config

@@ -6,7 +6,7 @@
 # tags: Android_Webview Android_but_not_webview Mac Win Linux
 # tags: ChromeOS Android Desktop Nexus_5 Nexus_5X Nexus_6P
 # tags: Nexus_7 Mac_10.11 Mac_10.12 Nexus6_Webview Nexus5X_Webview
-# tags: Win_7 Win_10
+# tags: Pixel_2 Win_7 Win_10
 
 # Benchmark: blink_perf.canvas
 crbug.com/593973 [ Android_Svelte ] blink_perf.canvas/* [ Skip ]
@@ -96,6 +96,8 @@ crbug.com/676612 [ Nexus6_Webview ] loading.mobile/TribunNews_3g [ Skip ]
 crbug.com/676612 [ Nexus6_Webview ] loading.mobile/FlipKart_warm_3g [ Skip ]
 crbug.com/676612 [ Nexus6_Webview ] loading.mobile/OLX_3g [ Skip ]
 crbug.com/676612 [ Nexus6_Webview ] loading.mobile/Youtube_3g [ Skip ]
+crbug.com/865400 [ Pixel_2 ] loading.mobile/TribunNews_3g [ Skip ]
+crbug.com/865400 [ Pixel_2 ] loading.mobile/Youtube_3g [ Skip ]
 
 # Benchmark: memory.long_running_idle_gmail_tbmv2
 crbug.com/611167 [ Android_Svelte ] memory.long_running_idle_gmail_tbmv2/* [ Skip ]
@@ -162,12 +164,14 @@ crbug.com/873013 [ Android_Webview ] rendering.mobile/yahoo_answers_mobile_2018
 crbug.com/873014 [ Android_Webview ] rendering.mobile/yahoo_answers_mobile_sync_scroll_2018 [ Skip ]
 crbug.com/874935 [ Android_Webview ] rendering.mobile/yahoo_answers_mobile_2018 [ Skip ]
 crbug.com/874935 [ Android_Webview ] rendering.mobile/yahoo_answers_mobile_sync_scroll_2018 [ Skip ]
+crbug.com/865400 [ Pixel_2 ] rendering.mobile/yahoo_answers_mobile_2018 [ Skip ]
+crbug.com/865400 [ Pixel_2 ] rendering.mobile/yahoo_answers_mobile_sync_scroll_2018 [ Skip ]
 
 # Benchmark: rasterize_and_record_micro.top_25
 crbug.com/764543 [ All ] rasterize_and_record_micro.top_25/file://static_top_25/wikipedia.html [ Skip ]
 crbug.com/815193 [ Android ] rasterize_and_record_micro.top_25/file://static_top_25/wikipedia.html [ Skip ]
-
 crbug.com/873011 [ Android_Webview ] rasterize_and_record_micro.top_25/file://static_top_25/yahoonews.html [ Skip ]
+crbug.com/865400 [ Pixel_2 ] rasterize_and_record_micro.top_25/file://static_top_25/yahoonews.html [ Skip ]
 
 # Benchmark: system_health.common_desktop
 crbug.com/828917 [ Mac ] system_health.common_desktop/multitab:misc:typical24 [ Skip ]
@@ -182,6 +186,7 @@ crbug.com/787001 [ Android_Webview ] system_health.common_mobile/load:media:soun
 crbug.com/708300 [ Android ] system_health.common_mobile/browse:shopping:flipkart [ Skip ]
 crbug.com/738854 [ Nexus_5X ] system_health.common_mobile/load:tools:drive [ Skip ]
 crbug.com/738854 [ Android_Webview ] system_health.common_mobile/load:tools:drive [ Skip ]
+crbug.com/865400 [ Pixel_2 ] system_health.common_mobile/background:news:nytimes [ Skip ]
 
 # Benchmark: system_health.memory_desktop
 crbug.com/728576 [ Mac ] system_health.memory_desktop/browse:news:cnn [ Skip ]
@@ -228,6 +233,7 @@ crbug.com/852888 [ Nexus_5X ] system_health.memory_mobile/background:news:nytime
 crbug.com/859500 [ Nexus_5X ] system_health.memory_mobile/browse:social:tumblr_infinite_scroll [ Skip ]
 crbug.com/871708 [ Android_Go Android_Webview ] system_health.memory_mobile/browse:social:facebook_infinite_scroll [ Skip ]
 crbug.com/871708 [ Android_One Android_Webview ] system_health.memory_mobile/browse:social:facebook_infinite_scroll [ Skip ]
+crbug.com/865400 [ Pixel_2 ] system_health.memory_mobile/background:news:nytimes [ Skip ]
 
 # Benchmark: tab_switching.typical_25
 crbug.com/747026 [ Mac ] tab_switching.typical_25/multitab:misc:typical24 [ Skip ]