Update Mac sizes expectation for ChromiumFramework growth (growth seems "normal").

mac-release/sizes/ChromiumFramework/ChromiumFramework: http://build.chromium.org/f/chromium/perf/mac-release/sizes/report.html?history=500&rev=221506&graph=ChromiumFramework

BUG=none
NOTRY=true
TBR=rmcilroy@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23514040

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221545 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf_expectations/perf_expectations.json

@@ -383,7 +383,7 @@
  "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": 221094, "revb": 221155, "type": "absolute", "better": "lower", "improve": 114739814, "regress": 126864999, "sha1": "f1e9491e"},
  "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": 203454, "revb": 203474, "type": "absolute", "better": "lower", "improve": 75475151, "regress": 83424206, "sha1": "52a77a86"},
+ "mac-release/sizes/ChromiumFramework/ChromiumFramework": {"reva": 221473, "revb": 221506, "type": "absolute", "better": "lower", "improve": 79252237, "regress": 87598884, "sha1": "9d65ee88"},
  "mac-release/sizes/chrome-si/initializers": {"reva": 216955, "revb": 216962, "type": "absolute", "better": "lower", "improve": 13, "regress": 13, "tolerance": 0, "sha1": "c937ef20"},
  "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"},