Update sizes expectations for mac chromium.app

tools/perf_expectations/perf_expectations.json

 {"linux-release-64/sizes/chrome-bss/bss": {"reva": 311086, "revb": 311132, "type": "absolute", "better": "lower", "improve": 453296, "regress": 501029, "sha1": "d69fb86b"},
  "linux-release-64/sizes/chrome-data/data": {"reva": 315738, "revb": 315881, "type": "absolute", "better": "lower", "improve": 4530816, "regress": 5008996, "sha1": "d3b1596a"},
  "linux-release-64/sizes/chrome-si/initializers": {"reva": 281711, "revb": 281711, "type": "absolute", "better": "lower", "improve": 7, "regress": 7, "tolerance": 0, "sha1": "b11fc43a"},
  "linux-release-64/sizes/chrome-text/text": {"reva": 319216, "revb": 319260, "type": "absolute", "better": "lower", "improve": 100175313, "regress": 110735624, "sha1": "bacf8d86"},
  "linux-release-64/sizes/chrome/chrome": {"reva": 315738, "revb": 315881, "type": "absolute", "better": "lower", "improve": 146067493, "regress": 161501324, "sha1": "599a4df5"},
  "linux-release-64/sizes/nacl_helper-bss/bss": {"reva": 282247, "revb": 282247, "type": "absolute", "better": "lower", "improve": 257670, "regress": 284794, "sha1": "4baf0f5e"},
  "linux-release-64/sizes/nacl_helper-data/data": {"reva": 315014, "revb": 315022, "type": "absolute", "better": "lower", "improve": 220172, "regress": 243348, "sha1": "7b14efc5"},
  "linux-release-64/sizes/nacl_helper-si/initializers": {"reva": 271321, "revb": 271321, "type": "absolute", "better": "lower", "improve": 5, "regress": 7, "sha1": "f29296a1"},
  "linux-release-64/sizes/nacl_helper-text/text": {"reva": 319216, "revb": 319260, "type": "absolute", "better": "lower", "improve": 6244331, "regress": 6903335, "sha1": "e16a59d3"},
  "linux-release-64/sizes/nacl_helper/nacl_helper": {"reva": 317943, "revb": 318001, "type": "absolute", "better": "lower", "improve": 8596154, "regress": 9501081, "sha1": "f709e4d1"},
@@ skipping 363 matching lines @@
  "linux-release/sizes/nacl_helper-si/initializers": {"reva": 271321, "revb": 271321, "type": "absolute", "better": "lower", "improve": 6, "regress": 8, "sha1": "3394be7f"},
  "linux-release/sizes/nacl_helper-text/text": {"reva": 320500, "revb": 320622, "type": "absolute", "better": "lower", "improve": 5754494, "regress": 6373632, "sha1": "a61cbb0f"},
  "linux-release/sizes/nacl_helper-textrel/textrel": {"reva": 264283, "revb": 264283, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "sha1": "0efaa99f"},
  "linux-release/sizes/nacl_helper/nacl_helper": {"reva": 326388, "revb": 326429, "type": "absolute", "better": "lower", "improve": 8103256, "regress": 8960541, "sha1": "58f1a213"},
  "linux-release/sizes/nacl_helper_bootstrap-bss/bss": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 1019980807, "regress": 1127347209, "sha1": "a4ff54ab"},
  "linux-release/sizes/nacl_helper_bootstrap-data/data": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 19, "regress": 21, "sha1": "6a3e92f4"},
  "linux-release/sizes/nacl_helper_bootstrap-si/initializers": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "sha1": "dd908f29"},
  "linux-release/sizes/nacl_helper_bootstrap-text/text": {"reva": 256743, "revb": 256743, "type": "absolute", "better": "lower", "improve": 4882, "regress": 5396, "sha1": "ffc106e5"},
  "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": 205083, "revb": 206071, "type": "absolute", "better": "lower", "improve": 1075, "regress": 1189, "sha1": "69d07fda"},
- "mac-release/sizes/Chromium.app/Chromium.app": {"reva": 326940, "revb": 326990, "type": "absolute", "better": "lower", "improve": 155912232, "regress": 159128167, "tolerance": 0.01, "sha1": "0e4899e7"},
+ "mac-release/sizes/Chromium.app/Chromium.app": {"reva": 333120, "revb": 333170, "type": "absolute", "better": "lower", "improve": 157534248, "regress": 160720896, "tolerance": 0.01, "sha1": "f5025410"},
  "mac-release/sizes/Chromium/Chromium": {"reva": 165473, "revb": 165473, "type": "absolute", "better": "lower", "improve": 8132, "regress": 8988, "sha1": "8e448691"},
  "mac-release/sizes/ChromiumFramework/ChromiumFramework": {"reva": 326940, "revb": 326990, "type": "absolute", "better": "lower", "improve": 102571179, "regress": 104681006, "tolerance": 0.01, "sha1": "f9819a70"},
  "mac-release/sizes/chrome-si/initializers": {"reva": 281731, "revb": 281731, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "tolerance": 0, "sha1": "01759b7f"},
  "win-release/media_tests_av_perf/audio_latency/latency": {"reva": 199840, "revb": 201303, "type": "absolute", "better": "lower", "improve": 57, "regress": 69, "sha1": "169d47dd"},
  "win-release/media_tests_av_perf/audio_latency/latency_bg_clip": {"reva": 199840, "revb": 201303, "type": "absolute", "better": "lower", "improve": 66, "regress": 78, "sha1": "708a71af"},
  "win-release/media_tests_av_perf/audio_pesq/actual": {"reva": 163215, "revb": 163382, "type": "absolute", "better": "higher", "improve": 4, "regress": 3, "sha1": "c8beccf7"},
  "win-release/media_tests_av_perf/audio_pesq/ref": {"reva": 163215, "revb": 163382, "type": "absolute", "better": "higher", "improve": 4, "regress": 3, "sha1": "b17c1404"},
  "win-release/media_tests_av_perf/cpu/crowd1080.webm": {"reva": 155313, "revb": 155418, "type": "absolute", "better": "lower", "improve": 0, "regress": 76, "sha1": "e656c991"},
  "win-release/media_tests_av_perf/cpu/crowd2160.webm": {"reva": 176330, "revb": 176978, "type": "absolute", "better": "lower", "improve": 0, "regress": 53, "sha1": "16fa69d2"},
  "win-release/media_tests_av_perf/cpu/crowd360.webm": {"reva": 155313, "revb": 155418, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "sha1": "2fff4dde"},
@@ skipping 340 matching lines @@
  "win-release/media_tests_av_perf/ttp/Wifi_dartmoor2.ogg": {"reva": 17420, "revb": 174996, "type": "absolute", "better": "lower", "improve": 12396.55, "regress": 14062.125, "sha1": "9ca7f6b1"},
  "win-release/media_tests_av_perf/ttp/Wifi_dartmoor2.wav": {"reva": 17420, "revb": 174996, "type": "absolute", "better": "lower", "improve": 6859.95, "regress": 24904.425, "sha1": "0e5625a5"},
  "win-release/media_tests_av_perf/ttp/Wifi_roller.webm": {"reva": 175328, "revb": 176157, "type": "absolute", "better": "lower", "improve": 906.775, "regress": 1184.925, "sha1": "d49e638f"},
  "xp-release/sizes/chrome.dll/chrome.dll": {"reva": 309071, "revb": 309081, "type": "absolute", "better": "lower", "improve": 36382233, "regress": 40213018, "sha1": "af511cf1"},
  "xp-release/sizes/chrome.exe/chrome.exe": {"reva": 309071, "revb": 309081, "type": "absolute", "better": "lower", "improve": 612377, "regress": 676839, "sha1": "63dbfdc5"},
  "xp-release/sizes/chrome_child.dll/chrome_child.dll": {"reva": 314576, "revb": 314588, "type": "absolute", "better": "lower", "improve": 39555993, "regress": 43720858, "sha1": "46896665"},
  "xp-release/sizes/mini_installer.exe/mini_installer.exe": {"reva": 325850, "revb": 325904, "type": "absolute", "better": "lower", "improve": 34587904, "regress": 38335719, "sha1": "3846b983"},
  "xp-release/sizes/setup.exe/setup.exe": {"reva": 314972, "revb": 314998, "type": "absolute", "better": "lower", "improve": 882816, "regress": 975744, "sha1": "682290df"},
  "load": true
 }