More expectations updates from shadow dom flag enable:

tools/perf_expectations/perf_expectations.json

 {"chromium-rel-win7-dual/dhtml/times/t": {"reva": 158193, "revb": 158364, "improve": -1339, "regress": 1295, "sha1": "9c4c56bf"},
  "chromium-rel-win7-dual/dom_perf/Total/score": {"reva": 158250, "revb": 158364, "improve": 126, "regress": -25, "sha1": "886711e2"},
- "chromium-rel-win7-dual/intl1/times/t": {"reva": 158193, "revb": 158364, "improve": 151, "regress": 292, "sha1": "80717688"},
+ "chromium-rel-win7-dual/intl1/times/t": {"reva": 161523, "revb": 161780, "improve": 221, "regress": 346, "sha1": "851fafa6"},
  "chromium-rel-win7-dual/intl2/times/t": {"reva": 158193, "revb": 158364, "improve": 24, "regress": 208, "sha1": "03be3fbb"},
  "chromium-rel-win7-dual/morejs/times/t": {"reva": 160381, "revb": 160431, "improve": -47, "regress": -28, "sha1": "f635707d"},
  "chromium-rel-win7-dual/moz/times/t": {"reva": 158193, "revb": 158364, "improve": -34, "regress": 21, "sha1": "8076ba79"},
  "chromium-rel-win7-dual/startup/warm/t": {"reva": 158193, "revb": 158364, "improve": 17, "regress": 34, "sha1": "9eaca6eb"},
  "chromium-rel-win7-dual/v8_benchmark/score/score": {"reva": 158193, "revb": 158364, "improve": 485, "regress": -615, "sha1": "21a861ff"},
  "linux-release-64/sizes/chrome-bss/bss": {"reva": 150377, "revb": 150377, "type": "absolute", "better": "lower", "improve": 496954, "regress": 549266, "sha1": "9ec40fb9"},
  "linux-release-64/sizes/chrome-data/data": {"reva": 155025, "revb": 155025, "type": "absolute", "better": "lower", "improve": 2821842, "regress": 3118878, "sha1": "354de6fa"},
  "linux-release-64/sizes/chrome-si/initializers": {"reva": 151177, "revb": 151177, "type": "absolute", "better": "lower", "improve": 40, "regress": 40, "tolerance": 0, "sha1": "09c3012f"},
  "linux-release-64/sizes/chrome-text/text": {"reva": 150665, "revb": 150665, "type": "absolute", "better": "lower", "improve": 76345499, "regress": 84381869, "sha1": "3470d257"},
  "linux-release-64/sizes/chrome.pak/chrome.pak": {"reva": 144090, "revb": 146227, "type": "absolute", "better": "lower", "improve": 3707774, "regress": 4832382, "sha1": "d7e07c9a"},
@@ skipping 767 matching lines @@
  "xp-release-dual-core/moz/times/t": {"reva": 147678, "revb": 147799, "improve": -35, "regress": 61, "sha1": "0d686973"},
  "xp-release-dual-core/moz/total_byte_b/IO_b": {"reva": 157311, "revb": 157406, "improve": 502, "regress": 2560, "sha1": "82eda24d"},
  "xp-release-dual-core/moz/total_byte_r/IO_r": {"reva": 160304, "revb": 160388, "improve": 598, "regress": 828, "sha1": "531d729e"},
  "xp-release-dual-core/moz/total_op_b/IO_op_b": {"reva": 160304, "revb": 160388, "improve": 5186, "regress": 6607, "sha1": "f0551d7f"},
  "xp-release-dual-core/moz/total_op_r/IO_op_r": {"reva": 160304, "revb": 160388, "improve": 2056, "regress": 3178, "sha1": "e12b42f0"},
  "xp-release-dual-core/moz/vm_peak_b/vm_pk_b": {"reva": 160304, "revb": 160388, "improve": 1968947, "regress": 4498637, "sha1": "f062f182"},
  "xp-release-dual-core/moz/vm_peak_r/vm_pk_r": {"reva": 148248, "revb": 148263, "improve": -2468660, "regress": 79349760, "sha1": "c3a017fe"},
  "xp-release-dual-core/startup/warm/t": {"reva": 76825, "revb": 77094, "improve": -107, "regress": 141, "sha1": "e0dcf672"},
  "xp-release-dual-core/v8_benchmark/score/score": {"reva": 153212, "revb": 153258, "improve": -23, "regress": -436, "sha1": "33634b6d"},
  "xp-release-single-core/dhtml/times/t": {"reva": 98602, "revb": 99994, "improve": -2888, "regress": 3391, "sha1": "30683762"},
- "xp-release-single-core/intl1/times/t": {"reva": 147685, "revb": 148133, "improve": -213, "regress": 21, "sha1": "ea3080ae"},
- "xp-release-single-core/intl2/times/t": {"reva": 141097, "revb": 142602, "improve": -849, "regress": 77, "sha1": "25c1c087"},
+ "xp-release-single-core/intl1/times/t": {"reva": 161556, "revb": 161778, "improve": -60, "regress": 391, "sha1": "4e425a2e"},
+ "xp-release-single-core/intl2/times/t": {"reva": 161556, "revb": 161778, "improve": -72, "regress": 174, "sha1": "44316b02"},
  "xp-release-single-core/morejs/times/t": {"reva": 141097, "revb": 142602, "improve": -308, "regress": 436, "sha1": "8282a308"},
  "xp-release-single-core/moz/times/t": {"reva": 75758, "revb": 76221, "improve": -1705, "regress": 3304, "sha1": "b615a416"},
  "xp-release-single-core/startup/times/t": {"improve": -9, "regress": 9, "sha1": "b1bf03da"},
  "xp-release/sizes/chrome.dll/chrome.dll": {"reva": 158800, "revb": 158918, "type": "absolute", "improve": 47358822, "regress": 52357402, "sha1": "b0e4f9ae"},
  "xp-release/sizes/chrome.exe/chrome.exe": {"reva": 109519, "revb": 110703, "type": "absolute", "improve": 1116774, "regress": 1239706, "sha1": "69996492"},
  "xp-release/sizes/mini_installer.exe/mini_installer.exe": {"reva": 157769, "revb": 157781, "type": "absolute", "better": "lower", "improve": 24088473, "regress": 26624103, "sha1": "b50ea085"},
  "xp-release/sizes/setup.exe/setup.exe": {"reva": 128672, "revb": 128741, "type": "absolute", "improve": 1436825, "regress": 1588608, "sha1": "aba5e95e"},
  "load": true
 }