Update perf expectations for chrome-si.

tools/perf_expectations/perf_expectations.json

 {"linux-release-64/sizes/chrome-bss/bss": {"reva": 91085, "revb": 91326, "type": "absolute", "improve": 565495, "regress": 625223, "sha1": "eac0d7ac"},
  "linux-release-64/sizes/chrome-data/data": {"reva": 91119, "revb": 91326, "type": "absolute", "improve": 2309480, "regress": 2557742, "sha1": "fd84a9d2"},
- "linux-release-64/sizes/chrome-si/initializers": {"reva": 90971, "revb": 91326, "type": "absolute", "improve": 389, "regress": 431, "sha1": "f1eefcfd"},
+ "linux-release-64/sizes/chrome-si/initializers": {"reva": 98800, "revb": 98828, "type": "absolute", "improve": 377, "regress": 417, "sha1": "b68e1a69"},
  "linux-release-64/sizes/chrome-text/text": {"reva": 91010, "revb": 91326, "type": "absolute", "improve": 58265824, "regress": 64542416, "sha1": "e45ea3d9"},
  "linux-release-64/sizes/chrome.pak/chrome.pak": {"reva": 93584, "revb": 93660, "type": "absolute", "improve": 2922846, "regress": 3230516, "sha1": "a32b48c6"},
  "linux-release-64/sizes/chrome/chrome": {"reva": 91177, "revb": 91321, "type": "absolute", "improve": 75401522, "regress": 83416007, "sha1": "98a0048f"},
  "linux-release-hardy/dhtml/commit_charge/cc": {"reva": 63231, "revb": 64325, "improve": -6947, "regress": 25528, "sha1": "0e22e67a"},
  "linux-release-hardy/dhtml/processes/proc_": {"improve": 0, "regress": 0, "sha1": "696fcb0f"},
  "linux-release-hardy/dhtml/times/t": {"reva": 87778, "revb": 88209, "improve": -68, "regress": 21, "sha1": "805a1511"},
  "linux-release-hardy/dhtml/total_byte_b/IO_b": {"reva": 85983, "revb": 88209, "improve": 4132, "regress": 6013, "sha1": "b7cb3bfb"},
  "linux-release-hardy/dhtml/total_byte_r/IO_r": {"reva": 71820, "revb": 73091, "improve": -42, "regress": -38, "sha1": "2fa955ce"},
  "linux-release-hardy/dhtml/total_op_b/IO_op_b": {"reva": 70127, "revb": 76230, "improve": 26261, "regress": 40613, "sha1": "1658213e"},
  "linux-release-hardy/dhtml/total_op_r/IO_op_r": {"reva": 80853, "revb": 81211, "improve": 60, "regress": 698, "sha1": "17890f30"},
@@ skipping 26 matching lines @@
  "linux-release-lowmem/startup/warm/t": {"reva": 81070, "revb": 81884, "improve": -117, "regress": 181, "sha1": "c4652b14"},
  "linux-release-lowmem/sunspider/total/t": {"reva": 81217, "revb": 81884, "improve": -645, "regress": 722, "sha1": "35f98911"},
  "linux-release-lowmem/v8_benchmark/score/score": {"reva": 81069, "revb": 81884, "improve": 1196, "regress": -2933, "sha1": "9e618ede"},
  "linux-release/dhtml/times/t": {"improve": -22, "regress": 8, "sha1": "8e10bd5c"},
  "linux-release/intl1/times/t": {"improve": -18, "regress": 12, "sha1": "7d499bde"},
  "linux-release/intl2/times/t": {"improve": -18, "regress": 12, "sha1": "27778034"},
  "linux-release/morejs/times/t": {"improve": 100, "regress": 130, "sha1": "6cb7d2e8"},
  "linux-release/moz/times/t": {"improve": -15, "regress": 15, "sha1": "6e690f60"},
  "linux-release/sizes/chrome-bss/bss": {"reva": 91085, "revb": 91326, "type": "absolute", "improve": 328321, "regress": 362950, "sha1": "6718b4cc"},
  "linux-release/sizes/chrome-data/data": {"reva": 98413, "revb": 98423, "type": "absolute", "improve": 1199515, "regress": 1325781, "sha1": "e8545530"},
- "linux-release/sizes/chrome-si/initializers": {"reva": 90971, "revb": 91326, "type": "absolute", "improve": 392, "regress": 434, "sha1": "3f96304c"},
+ "linux-release/sizes/chrome-si/initializers": {"reva": 98800, "revb": 98828, "type": "absolute", "improve": 380, "regress": 420, "sha1": "b1463843"},
  "linux-release/sizes/chrome-text/text": {"reva": 91010, "revb": 91326, "type": "absolute", "improve": 50924512, "regress": 56409963, "sha1": "c6eabdc8"},
  "linux-release/sizes/chrome.pak/chrome.pak": {"reva": 93584, "revb": 93660, "type": "absolute", "improve": 2922846, "regress": 3230516, "sha1": "71901043"},
  "linux-release/sizes/chrome/chrome": {"reva": 91177, "revb": 91321, "type": "absolute", "improve": 65341452, "regress": 72282009, "sha1": "d05e65ea"},
  "linux-release/startup/times/t": {"improve": -15, "regress": 15, "sha1": "c8f06f81"},
  "mac-release-10.5/dhtml/times/t": {"improve": -90, "regress": 90, "sha1": "63a69fd0"},
  "mac-release-10.5/intl1/times/t": {"reva": 80750, "revb": 81318, "improve": -340, "regress": 120, "sha1": "03456e1f"},
  "mac-release-10.5/intl2/commit_charge/cc": {"reva": 79662, "revb": 81211, "improve": -46238, "regress": 55911, "sha1": "4c75e106"},
  "mac-release-10.5/intl2/processes/proc_": {"improve": 0, "regress": 0, "sha1": "a1a53594"},
  "mac-release-10.5/intl2/times/t": {"reva": 80750, "revb": 81208, "improve": -1772, "regress": 1586, "sha1": "3b491046"},
  "mac-release-10.5/intl2/vm_rss_final_b/vm_rss_f_b": {"reva": 82169, "revb": 82810, "improve": 7140352, "regress": 15349556, "sha1": "22c1038d"},
@@ skipping 49 matching lines @@
  "xp-release-single-core/intl2/times/t": {"reva": 78006, "revb": 79149, "improve": -1566, "regress": -871, "sha1": "90946d93"},
  "xp-release-single-core/morejs/times/t": {"reva": 81028, "revb": 81209, "improve": -417, "regress": -264, "sha1": "8ce9af86"},
  "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": 91883, "revb": 91888, "type": "absolute", "improve": 33471129, "regress": 36994407, "sha1": "ec2939e2"},
  "xp-release/sizes/chrome.exe/chrome.exe": {"reva": 81814, "revb": 82805, "type": "absolute", "improve": 1068134, "regress": 1180570, "sha1": "e56118d2"},
  "xp-release/sizes/mini_installer.exe/mini_installer.exe": {"reva": 84829, "revb": 85049, "type": "absolute", "improve": 18061977, "regress": 20016999, "sha1": "aca62812"},
  "xp-release/sizes/setup.exe/setup.exe": {"reva": 81852, "revb": 82805, "type": "absolute", "improve": 1138662, "regress": 1258522, "sha1": "f1de9ae7"},
  "load": true
 }