Disable more loading mobile tests flaky on Nexus6_Webview

Bug:676612
Change-Id: Ia884ea757f60c625442a7564955f4f0eea8a1164
TBR=ksakamoto@chromium.org, kouhei@chromium.org

NOTRY=true

Change-Id: Ia884ea757f60c625442a7564955f4f0eea8a1164
Reviewed-on: https://chromium-review.googlesource.com/1180213
Commit-Queue: Ned Nguyen <nednguyen@google.com>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Cr-Commit-Position: refs/heads/master@{#584332}

tools/perf/expectations.config

@@ -96,6 +96,11 @@ 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/676612 [ Nexus6_Webview ] loading.mobile/Hongkiat_3g [ Skip ]
+crbug.com/676612 [ Nexus6_Webview ] loading.mobile/BOLNoticias_3g [ Skip ]
+crbug.com/676612 [ Nexus6_Webview ] loading.mobile/GoogleBrazil_3g [ Skip ]
+crbug.com/676612 [ Nexus6_Webview ] loading.mobile/GoogleIndonesia_3g [ Skip ]
+crbug.com/676612 [ Nexus6_Webview ] loading.mobile/Kaskus [ Skip ]
 crbug.com/865400 [ Pixel_2 ] loading.mobile/TribunNews_3g [ Skip ]
 crbug.com/865400 [ Pixel_2 ] loading.mobile/Youtube_3g [ Skip ]