[ChromeDriver] Disable failing tests on Mac platform

The following Java tests are failing on Waterfall on Mac platform:

WindowTest.testCanMaximizeTheWindowFromFrame
WindowTest.testCanMaximizeTheWindowFromIframe
WindowTest.testCanMaximizeTheWindow

Disabling these tests.

Bug: chromedriver:2748
Change-Id: I611f95abe1b1f02e47d4ea19e1c64ba5f5a74781
Reviewed-on: https://chromium-review.googlesource.com/c/1427925
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Artur Khachatryan <khachatryan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#624976}
1 file changed