[ChromeDriver] exclude tests for maximize window on Mac

Bug:868599

Change-Id: I59ddac3c2c1ada97b252d8d86faf051b4d7ba80b
Reviewed-on: https://chromium-review.googlesource.com/1219891Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Tatiana Buldina <buldina@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590422}

chrome/test/chromedriver/test/test_expectations

@@ -37,6 +37,12 @@ _OS_NEGATIVE_FILTER['linux'] = [
 _OS_NEGATIVE_FILTER['mac'] = [
     # https://bugs.chromium.org/p/chromedriver/issues/detail?id=2480
     'TakesScreenshotTest.testShouldCaptureScreenshotOfCurrentViewport',
+
+    # https://crbug.com/868599
+    'WindowTest.testCanMaximizeTheWindowFromFrame',
+    'WindowTest.testCanMaximizeTheWindowFromIframe',
+    'WindowTest.testSetsTheSizeOfTheCurrentWindow',
+    'WindowTest.testCanMaximizeTheWindow',
 ]
 
 _SPECIFIC_OS_REVISION_NEGATIVE_FILTER = {}