Update perf expectations after V8 roll.

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 509052ed672374108f9ede5a6e5c2db1c1582ef2..0c794fe5500f54c84cbe867d8f8b04a3e8a31910 100644
--- a/tools/perf_expectations/perf_expectations.json
+++ b/tools/perf_expectations/perf_expectations.json
@@ -16,7 +16,7 @@
  "linux-release-hardy/morejs/times/t": {"reva": 63860, "revb": 64266, "improve": 121, "regress": 281},
  "linux-release-hardy/moz/times/t": {"improve": -190, "regress": 20},
  "linux-release-hardy/startup/warm/t": {"improve": -11, "regress": 93},
- "linux-release-hardy/v8_benchmark/score/score": {"reva": 64893, "revb": 66188, "improve": 828, "regress": 130},
+ "linux-release-hardy/v8_benchmark/score/score": {"reva": 68478, "revb": 68543, "improve": 633, "regress": 269},
  "linux-release/dhtml/times/t": {"improve": -22, "regress": 8},
  "linux-release/intl1/times/t": {"improve": -18, "regress": 12},
  "linux-release/intl2/times/t": {"improve": -18, "regress": 12},
@@ -37,21 +37,21 @@
  "mac-release-10.5/morejs/times/t": {"improve": -210, "regress": -60},
  "mac-release-10.5/moz/times/t": {"improve": -40, "regress": 200},
  "mac-release-10.5/startup/warm/t": {"improve": 20, "regress": 80},
- "mac-release-10.5/v8_benchmark/score/score": {"reva": 64892, "revb": 66187, "improve": 1413, "regress": 1040},
+ "mac-release-10.5/v8_benchmark/score/score": {"reva": 68477, "revb": 68542, "improve": 3972, "regress": 3193},
  "mac-release-10.6/dhtml/times/t": {"improve": -55, "regress": 25},
  "mac-release-10.6/intl1/times/t": {"reva": 63692, "revb": 64027, "improve": -20733, "regress": 23605},
  "mac-release-10.6/intl2/times/t": {"reva": 63692, "revb": 64027, "improve": -17204, "regress": 19694},
  "mac-release-10.6/morejs/times/t": {"improve": -200, "regress": -40},
  "mac-release-10.6/moz/times/t": {"improve": -30, "regress": 200},
  "mac-release-10.6/startup/times/t": {"improve": -2, "regress": 22},
- "mac-release-10.6/v8_benchmark/score/score": {"reva": 64893, "revb": 66191, "improve": 1670, "regress": 1049},
+ "mac-release-10.6/v8_benchmark/score/score": {"reva": 68477, "revb": 68543, "improve": 4362, "regress": 3263},
  "vista-release-dual-core/dhtml/times/t": {"improve": -22, "regress": 45},
  "vista-release-dual-core/intl1/times/t": {"reva": 63721, "revb": 64027, "improve": 178, "regress": 574},
  "vista-release-dual-core/intl2/times/t": {"improve": -180, "regress": 215},
  "vista-release-dual-core/morejs/times/t": {"improve": -130, "regress": -60},
  "vista-release-dual-core/moz/times/t": {"improve": -3, "regress": 133},
  "vista-release-dual-core/startup/times/t": {"improve": -15, "regress": 15},
- "vista-release-dual-core/v8_benchmark/score/score": {"reva": 64892, "revb": 66190, "improve": 1715, "regress": 772},
+ "vista-release-dual-core/v8_benchmark/score/score": {"reva": 68479, "revb": 68542, "improve": 4425, "regress": 3382},
  "vista-release-single-core/dhtml/times/t": {"improve": -90, "regress": 90},
  "vista-release-single-core/intl1/times/t": {"improve": -510, "regress": 510},
  "vista-release-single-core/intl2/times/t": {"improve": -105, "regress": 105},
@@ -72,7 +72,7 @@
  "xp-release-dual-core/moz/vm_peak_b/vm_pk_b": {"improve": 600000, "regress": 4200000},
  "xp-release-dual-core/moz/vm_peak_r/vm_pk_r": {"reva": 63660, "revb": 64027, "improve": -14949581, "regress": -7358259},
  "xp-release-dual-core/startup/warm/t": {"reva": 63759, "revb": 64027, "improve": -4, "regress": 13},
- "xp-release-dual-core/v8_benchmark/score/score": {"reva": 64892, "revb": 66189, "improve": 1455, "regress": 937},
+ "xp-release-dual-core/v8_benchmark/score/score": {"reva": 68479, "revb": 68542, "improve": 4049, "regress": 3222},
  "xp-release-single-core/dhtml/times/t": {"improve": -21, "regress": 21},
  "xp-release-single-core/intl1/times/t": {"improve": 510, "regress": 930},
  "xp-release-single-core/intl2/times/t": {"improve": 225, "regress": 375},