Disable failing wasm stories

NOTRY=true
TBR=nednguyen@chromium.org
CC=bradnelson@chromium.org

Bug: 840935
Change-Id: I99ec329b99822a800d70da48dcea4a085fe71e56
Reviewed-on: https://chromium-review.googlesource.com/1050577Reviewed-by: Charlie Andrews <charliea@chromium.org>
Commit-Queue: Charlie Andrews <charliea@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556924}

tools/perf/expectations.config

@@ -421,6 +421,8 @@ crbug.com/829161 [ Mac ] v8.runtime_stats.top_25/https://www.google.de/search?q=
 [ Android_One ] wasm/WasmSpaceBuggy [ Skip ]
 crbug.com/814012 [ Mac ] wasm/AsmJsZenGarden [ Skip ]
 crbug.com/814012 [ Win ] wasm/AsmJsZenGarden [ Skip ]
+crbug.com/840935 [ All ] wasm/WasmStylizedRenderer [ Skip ]
+crbug.com/840935 [ All ] wasm/WasmSunTemple [ Skip ]
 
 ##### Perf FYI benchmarks go after here #####
 # Benchmark: loading.desktop.network_service