Use a more compact HSTS representation.

net/http/transport_security_state_static.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains the HSTS preloaded list in a machine readable format.
 
 // The top-level element is a dictionary with two keys: "pinsets" maps details
 // of certificate pinning to a name and "entries" contains the HSTS details for
 // each host.
 //
@@ skipping 1246 matching lines @@
     { "name": "prakharprasad.com", "include_subdomains": true, "mode": "force-https" },
     { "name": "ravchat.com", "include_subdomains": true, "mode": "force-https" },
     { "name": "sciencex.com", "include_subdomains": true, "mode": "force-https" },
     { "name": "shiinko.com", "include_subdomains": true, "mode": "force-https" },
     { "name": "spideroak.com", "include_subdomains": true, "mode": "force-https" },
     { "name": "thorncreek.net", "include_subdomains": true, "mode": "force-https" },
     { "name": "tno.io", "include_subdomains": true, "mode": "force-https" },
     { "name": "translatoruk.co.uk", "include_subdomains": true, "mode": "force-https" },
     { "name": "wepay.in.th", "include_subdomains": true, "mode": "force-https" },
     { "name": "zixiao.wang", "include_subdomains": true, "mode": "force-https" }
+  ],
+
+  // |ReportUMAOnPinFailure| uses these to report which domain was associated
+  // with the public key pinning failure.
+  //
+  // DO NOT CHANGE THE ORDERING OF THESE NAMES OR REMOVE ANY OF THEM. Add new
+  // domains at the END of the array.
+  "domain_ids": [
+    "NOT_PINNED",
+    "GOOGLE_COM",
+    "ANDROID_COM",
+    "GOOGLE_ANALYTICS_COM",
+    "GOOGLEPLEX_COM",
+    "YTIMG_COM",
+    "GOOGLEUSERCONTENT_COM",
+    "YOUTUBE_COM",
+    "GOOGLEAPIS_COM",
+    "GOOGLEADSERVICES_COM",
+    "GOOGLECODE_COM",
+    "APPSPOT_COM",
+    "GOOGLESYNDICATION_COM",
+    "DOUBLECLICK_NET",
+    "GSTATIC_COM",
+    "GMAIL_COM",
+    "GOOGLEMAIL_COM",
+    "GOOGLEGROUPS_COM",
+    "TORPROJECT_ORG",
+    "TWITTER_COM",
+    "TWIMG_COM",
+    "AKAMAIHD_NET",
+    "TOR2WEB_ORG",
+    "YOUTU_BE",
+    "GOOGLECOMMERCE_COM",
+    "URCHIN_COM",
+    "GOO_GL",
+    "G_CO",
+    "GOOGLE_AC",
+    "GOOGLE_AD",
+    "GOOGLE_AE",
+    "GOOGLE_AF",
+    "GOOGLE_AG",
+    "GOOGLE_AM",
+    "GOOGLE_AS",
+    "GOOGLE_AT",
+    "GOOGLE_AZ",
+    "GOOGLE_BA",
+    "GOOGLE_BE",
+    "GOOGLE_BF",
+    "GOOGLE_BG",
+    "GOOGLE_BI",
+    "GOOGLE_BJ",
+    "GOOGLE_BS",
+    "GOOGLE_BY",
+    "GOOGLE_CA",
+    "GOOGLE_CAT",
+    "GOOGLE_CC",
+    "GOOGLE_CD",
+    "GOOGLE_CF",
+    "GOOGLE_CG",
+    "GOOGLE_CH",
+    "GOOGLE_CI",
+    "GOOGLE_CL",
+    "GOOGLE_CM",
+    "GOOGLE_CN",
+    "CO_AO",
+    "CO_BW",
+    "CO_CK",
+    "CO_CR",
+    "CO_HU",
+    "CO_ID",
+    "CO_IL",
+    "CO_IM",
+    "CO_IN",
+    "CO_JE",
+    "CO_JP",
+    "CO_KE",
+    "CO_KR",
+    "CO_LS",
+    "CO_MA",
+    "CO_MZ",
+    "CO_NZ",
+    "CO_TH",
+    "CO_TZ",
+    "CO_UG",
+    "CO_UK",
+    "CO_UZ",
+    "CO_VE",
+    "CO_VI",
+    "CO_ZA",
+    "CO_ZM",
+    "CO_ZW",
+    "COM_AF",
+    "COM_AG",
+    "COM_AI",
+    "COM_AR",
+    "COM_AU",
+    "COM_BD",
+    "COM_BH",
+    "COM_BN",
+    "COM_BO",
+    "COM_BR",
+    "COM_BY",
+    "COM_BZ",
+    "COM_CN",
+    "COM_CO",
+    "COM_CU",
+    "COM_CY",
+    "COM_DO",
+    "COM_EC",
+    "COM_EG",
+    "COM_ET",
+    "COM_FJ",
+    "COM_GE",
+    "COM_GH",
+    "COM_GI",
+    "COM_GR",
+    "COM_GT",
+    "COM_HK",
+    "COM_IQ",
+    "COM_JM",
+    "COM_JO",
+    "COM_KH",
+    "COM_KW",
+    "COM_LB",
+    "COM_LY",
+    "COM_MT",
+    "COM_MX",
+    "COM_MY",
+    "COM_NA",
+    "COM_NF",
+    "COM_NG",
+    "COM_NI",
+    "COM_NP",
+    "COM_NR",
+    "COM_OM",
+    "COM_PA",
+    "COM_PE",
+    "COM_PH",
+    "COM_PK",
+    "COM_PL",
+    "COM_PR",
+    "COM_PY",
+    "COM_QA",
+    "COM_RU",
+    "COM_SA",
+    "COM_SB",
+    "COM_SG",
+    "COM_SL",
+    "COM_SV",
+    "COM_TJ",
+    "COM_TN",
+    "COM_TR",
+    "COM_TW",
+    "COM_UA",
+    "COM_UY",
+    "COM_VC",
+    "COM_VE",
+    "COM_VN",
+    "GOOGLE_CV",
+    "GOOGLE_CZ",
+    "GOOGLE_DE",
+    "GOOGLE_DJ",
+    "GOOGLE_DK",
+    "GOOGLE_DM",
+    "GOOGLE_DZ",
+    "GOOGLE_EE",
+    "GOOGLE_ES",
+    "GOOGLE_FI",
+    "GOOGLE_FM",
+    "GOOGLE_FR",
+    "GOOGLE_GA",
+    "GOOGLE_GE",
+    "GOOGLE_GG",
+    "GOOGLE_GL",
+    "GOOGLE_GM",
+    "GOOGLE_GP",
+    "GOOGLE_GR",
+    "GOOGLE_GY",
+    "GOOGLE_HK",
+    "GOOGLE_HN",
+    "GOOGLE_HR",
+    "GOOGLE_HT",
+    "GOOGLE_HU",
+    "GOOGLE_IE",
+    "GOOGLE_IM",
+    "GOOGLE_INFO",
+    "GOOGLE_IQ",
+    "GOOGLE_IS",
+    "GOOGLE_IT",
+    "IT_AO",
+    "GOOGLE_JE",
+    "GOOGLE_JO",
+    "GOOGLE_JOBS",
+    "GOOGLE_JP",
+    "GOOGLE_KG",
+    "GOOGLE_KI",
+    "GOOGLE_KZ",
+    "GOOGLE_LA",
+    "GOOGLE_LI",
+    "GOOGLE_LK",
+    "GOOGLE_LT",
+    "GOOGLE_LU",
+    "GOOGLE_LV",
+    "GOOGLE_MD",
+    "GOOGLE_ME",
+    "GOOGLE_MG",
+    "GOOGLE_MK",
+    "GOOGLE_ML",
+    "GOOGLE_MN",
+    "GOOGLE_MS",
+    "GOOGLE_MU",
+    "GOOGLE_MV",
+    "GOOGLE_MW",
+    "GOOGLE_NE",
+    "NE_JP",
+    "GOOGLE_NET",
+    "GOOGLE_NL",
+    "GOOGLE_NO",
+    "GOOGLE_NR",
+    "GOOGLE_NU",
+    "OFF_AI",
+    "GOOGLE_PK",
+    "GOOGLE_PL",
+    "GOOGLE_PN",
+    "GOOGLE_PS",
+    "GOOGLE_PT",
+    "GOOGLE_RO",
+    "GOOGLE_RS",
+    "GOOGLE_RU",
+    "GOOGLE_RW",
+    "GOOGLE_SC",
+    "GOOGLE_SE",
+    "GOOGLE_SH",
+    "GOOGLE_SI",
+    "GOOGLE_SK",
+    "GOOGLE_SM",
+    "GOOGLE_SN",
+    "GOOGLE_SO",
+    "GOOGLE_ST",
+    "GOOGLE_TD",
+    "GOOGLE_TG",
+    "GOOGLE_TK",
+    "GOOGLE_TL",
+    "GOOGLE_TM",
+    "GOOGLE_TN",
+    "GOOGLE_TO",
+    "GOOGLE_TP",
+    "GOOGLE_TT",
+    "GOOGLE_US",
+    "GOOGLE_UZ",
+    "GOOGLE_VG",
+    "GOOGLE_VU",
+    "GOOGLE_WS",
+    "CHROMIUM_ORG",
+    "CRYPTO_CAT",
+    "LAVABIT_COM",
+    "GOOGLETAGMANAGER_COM",
+    "GOOGLETAGSERVICES_COM",
+    "DROPBOX_COM",
+    "YOUTUBE_NOCOOKIE_COM",
+    "2MDN_NET"
   ]
 }