Update some expectations to allow more variance.

tools/perf_expectations/perf_expectations.json

Index: tools/perf_expectations/perf_expectations.json
diff --git a/tools/perf_expectations/perf_expectations.json b/tools/perf_expectations/perf_expectations.json
index 521b548172f14a454e165a5717731728e3887845..bd272772490c1df41061b0386a0004708412ce24 100644
--- a/tools/perf_expectations/perf_expectations.json
+++ b/tools/perf_expectations/perf_expectations.json
@@ -22,8 +22,8 @@
  "mac-release-10.6/morejs/times/t": {"improve": -320, "regress": -226},
  "mac-release-10.6/moz/times/t": {"improve": 30, "regress": 170},
  "mac-release-10.6/startup/times/t": {"improve": -2, "regress": 22},
- "vista-release-dual-core/dhtml/times/t": {"improve": -20, "regress": 40},
- "vista-release-dual-core/intl1/times/t": {"improve": 146, "regress": 330},
+ "vista-release-dual-core/dhtml/times/t": {"improve": -0, "regress": 93},
+ "vista-release-dual-core/intl1/times/t": {"improve": 270, "regress": 680},
  "vista-release-dual-core/intl2/times/t": {"improve": -97, "regress": 30},
  "vista-release-dual-core/morejs/times/t": {"improve": -240, "regress": -155},
  "vista-release-dual-core/moz/times/t": {"improve": -3, "regress": 133},
@@ -40,7 +40,7 @@
  "xp-release-dual-core/intl1/times/t": {"improve": 173, "regress": 370},
  "xp-release-dual-core/intl2/times/t": {"improve": 30, "regress": 100},
  "xp-release-dual-core/morejs/times/t": {"improve": -211, "regress": -187},
- "xp-release-dual-core/moz/times/t": {"improve": -10, "regress": 50},
+ "xp-release-dual-core/moz/times/t": {"improve": -10, "regress": 60},
  "xp-release-dual-core/moz/total_byte_b/IO_b": {"improve": -6389, "regress": -5607},
  "xp-release-dual-core/moz/total_byte_r/IO_r": {"improve": 190, "regress": 430},
  "xp-release-dual-core/moz/total_op_b/IO_op_b": {"improve": -13000, "regress": -10080},