Update moz time on xp dual core.

tools/perf_expectations/perf_expectations.json

 {"linux-release-64/sizes/chrome-bss/bss": {"reva": 117429, "revb": 117430, "type": "absolute", "improve": 587620, "regress": 691837, "sha1": "9aa9b786"},
  "linux-release-64/sizes/chrome-data/data": {"reva": 135999, "revb": 136000, "type": "absolute", "better": "lower", "improve": 2551863, "regress": 2820481, "sha1": "f3ce82a6"},
  "linux-release-64/sizes/chrome-si/initializers": {"reva": 135653, "revb": 135654, "type": "absolute", "better": "lower", "improve": 95, "regress": 95, "tolerance": 0, "sha1": "e114540b"},
  "linux-release-64/sizes/chrome-text/text": {"reva": 124072, "revb": 124086, "type": "absolute", "better": "lower", "improve": 69229577, "regress": 76531811, "sha1": "06e16ec5"},
  "linux-release-64/sizes/chrome.pak/chrome.pak": {"reva": 119925, "revb": 133308, "type": "absolute", "better": "lower", "improve": 3295864, "regress": 3818563, "sha1": "bf7f5d43"},
  "linux-release-64/sizes/chrome/chrome": {"reva": 124072, "revb": 124086, "type": "absolute", "improve": 90809823, "regress": 100389593, "sha1": "e4bc9fe5"},
  "linux-release-64/sizes/nacl_helper-bss/bss": {"reva": 127301, "revb": 127334, "type": "absolute", "better": "lower", "improve": 348881, "regress": 385607, "sha1": "da9089b6"},
  "linux-release-64/sizes/nacl_helper-data/data": {"reva": 129061, "revb": 129076, "type": "absolute", "better": "lower", "improve": 33405, "regress": 36923, "sha1": "effeb881"},
  "linux-release-64/sizes/nacl_helper-si/initializers": {"reva": 120278, "revb": 120278, "type": "absolute", "better": "lower", "improve": 17, "regress": 19, "sha1": "77a7c319"},
  "linux-release-64/sizes/nacl_helper-text/text": {"reva": 129061, "revb": 129076, "type": "absolute", "better": "lower", "improve": 815533, "regress": 901379, "sha1": "8485a7fa"},
@@ skipping 127 matching lines @@
  "vista-release-single-core/morejs/times/t": {"reva": 137752, "revb": 137789, "improve": -55, "regress": 35, "sha1": "120ede8f"},
  "vista-release-single-core/moz/times/t": {"reva": 129222, "revb": 131453, "improve": -738, "regress": 2492, "sha1": "91329eb5"},
  "vista-release-single-core/startup/times/t": {"improve": -9, "regress": 9, "sha1": "cb61d833"},
  "xp-release-dual-core/dhtml/times/t": {"reva": 104424, "revb": 104645, "improve": -80, "regress": 1972, "sha1": "9f34f008"},
  "xp-release-dual-core/dom_perf/Total/score": {"reva": 116084, "revb": 116312, "improve": 160, "regress": 0, "sha1": "4d8353a0"},
  "xp-release-dual-core/dromaeo_domcore/score/score": {"improve": 284, "regress": 236, "sha1": "35178029"},
  "xp-release-dual-core/dromaeo_jslib/score/score": {"improve": 18, "regress": -6, "sha1": "bd9f8469"},
  "xp-release-dual-core/intl1/times/t": {"reva": 137758, "revb": 137781, "improve": -21, "regress": 92, "sha1": "2996efca"},
  "xp-release-dual-core/intl2/times/t": {"reva": 137758, "revb": 137781, "improve": -92, "regress": 27, "sha1": "118c2ce6"},
  "xp-release-dual-core/morejs/times/t": {"reva": 131574, "revb": 127228, "improve": -452, "regress": 456, "sha1": "21ef0dc0"},
- "xp-release-dual-core/moz/times/t": {"reva": 137758, "revb": 137802, "improve": -73, "regress": 9, "sha1": "ef5c36da"},
+ "xp-release-dual-core/moz/times/t": {"reva": 137758, "revb": 137867, "improve": -77, "regress": 18, "sha1": "df06de4a"},
  "xp-release-dual-core/moz/total_byte_b/IO_b": {"reva": 109376, "revb": 109471, "improve": 1046, "regress": 2965, "sha1": "0b75c6e0"},
  "xp-release-dual-core/moz/total_byte_r/IO_r": {"reva": 125126, "revb": 131467, "improve": 225, "regress": 41548, "sha1": "da5adcfa"},
  "xp-release-dual-core/moz/total_op_b/IO_op_b": {"reva": 134801, "revb": 135612, "improve": 4077, "regress": 6575, "sha1": "f9d32359"},
  "xp-release-dual-core/moz/total_op_r/IO_op_r": {"reva": 130089, "revb": 130452, "improve": 2915, "regress": 5977, "sha1": "bc5d9093"},
  "xp-release-dual-core/moz/vm_peak_b/vm_pk_b": {"reva": 129493, "revb": 131413, "improve": 1560371, "regress": 10416538, "sha1": "e028a86c"},
  "xp-release-dual-core/moz/vm_peak_r/vm_pk_r": {"reva": 130089, "revb": 130452, "improve": 19821772, "regress": 27770266, "sha1": "31551aca"},
  "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": 137754, "revb": 137799, "improve": 74, "regress": -208, "sha1": "f3b9c5d7"},
  "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": 137748, "revb": 137790, "improve": -94, "regress": 95, "sha1": "fc568213"},
  "xp-release-single-core/intl2/times/t": {"reva": 137748, "revb": 137790, "improve": -69, "regress": 101, "sha1": "b699c689"},
  "xp-release-single-core/morejs/times/t": {"reva": 104308, "revb": 104575, "improve": -32, "regress": 485, "sha1": "e63333ad"},
  "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": 129948, "revb": 130119, "type": "absolute", "improve": 40731622, "regress": 45063245, "sha1": "74e51d52"},
  "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": 124098, "revb": 133304, "type": "absolute", "improve": 20609254, "regress": 24072653, "sha1": "e01f4d11"},
  "xp-release/sizes/setup.exe/setup.exe": {"reva": 128672, "revb": 128741, "type": "absolute", "improve": 1436825, "regress": 1588608, "sha1": "aba5e95e"},
  "load": true
 }