Update perf expectations

tools/perf_expectations/perf_expectations.json

Index: tools/perf_expectations/perf_expectations.json
===================================================================
--- tools/perf_expectations/perf_expectations.json	(revision 126690)
+++ tools/perf_expectations/perf_expectations.json	(working copy)
@@ -71,7 +71,7 @@
  "linux-release/sizes/nacl_helper_bootstrap/nacl_helper_bootstrap": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 8776, "regress": 9700, "sha1": "3f284fed"},
  "linux-release/sizes/totals-textrel/textrel": {"reva": 117299, "revb": 117299, "type": "absolute", "better": "lower", "improve": 5768, "regress": 6376, "sha1": "d075a3a7"},
  "linux-release/startup/times/t": {"improve": -15, "regress": 15, "sha1": "c8f06f81"},
- "mac-release-10.5/dhtml/times/t": {"reva": 120801, "revb": 120991, "improve": -10, "regress": 81, "sha1": "72b1385e"},
+ "mac-release-10.5/dhtml/times/t": {"reva": 126358, "revb": 126677, "improve": 41, "regress": 135, "sha1": "8b6edf8a"},
  "mac-release-10.5/dom_perf/Total/score": {"reva": 120570, "revb": 121453, "improve": 377, "regress": 120, "sha1": "aa8f52ed"},
  "mac-release-10.5/intl1/times/t": {"reva": 120693, "revb": 121454, "improve": -1276, "regress": -867, "sha1": "415413de"},
  "mac-release-10.5/intl2/commit_charge/cc": {"reva": 79662, "revb": 81211, "improve": -46238, "regress": 55911, "sha1": "4c75e106"},
@@ -99,7 +99,7 @@
  "mac-release/sizes/Chromium/Chromium": {"reva": 113807, "revb": 113811, "type": "absolute", "better": "lower", "improve": 8291, "regress": 9165, "sha1": "c7009af0"},
  "mac-release/sizes/ChromiumFramework/ChromiumFramework": {"reva": 117439, "revb": 117775, "type": "absolute", "better": "lower", "improve": 56045690, "regress": 62003580, "sha1": "b91ed9dc"},
  "mac-release/sizes/chrome-si/initializers": {"reva": 126417, "revb": 126417, "type": "absolute", "better": "lower", "improve": 75, "regress": 75, "tolerance": 0, "sha1": "3c03fd80"},
- "vista-release-dual-core/dhtml/times/t": {"reva": 120795, "revb": 121238, "improve": -83, "regress": 24, "sha1": "eacbdc60"},
+ "vista-release-dual-core/dhtml/times/t": {"reva": 126494, "revb": 126672, "improve": -17, "regress": 81, "sha1": "bba9c810"},
  "vista-release-dual-core/dom_perf/Total/score": {"reva": 116076, "revb": 116185, "improve": 168, "regress": 14, "sha1": "0ed1219b"},
  "vista-release-dual-core/intl1/times/t": {"reva": 121690, "revb": 121930, "improve": 434, "regress": 814, "sha1": "df55dd89"},
  "vista-release-dual-core/intl2/times/t": {"reva": 120708, "revb": 121653, "improve": 296, "regress": 534, "sha1": "e35ee4e5"},