[chromedriver] Disable WindowTest and ScreenshotTest on HEAD

chrome/test/chromedriver/test/test_expectations

Index: chrome/test/chromedriver/test/test_expectations
diff --git a/chrome/test/chromedriver/test/test_expectations b/chrome/test/chromedriver/test/test_expectations
index 6dc75ca955f813c6f61f18136d4ae57e971cde75..fead5a16a10a70533a2e463cbd113a7b56625713 100644
--- a/chrome/test/chromedriver/test/test_expectations
+++ b/chrome/test/chromedriver/test/test_expectations
@@ -100,6 +100,9 @@ _REVISION_NEGATIVE_FILTER['HEAD'] = [
     # https://bugs.chromium.org/p/chromedriver/issues/detail?id=1503
     'BasicMouseInterfaceTest.testDraggingElementWithMouseFiresEvents',
     'BasicMouseInterfaceTest.testDraggingElementWithMouseMovesItToAnotherList',
+    # https://bugs.chromium.org/p/chromedriver/issues/detail?id=1625
+    'TakesScreenshotTest.*',
+    'WindowTest.*',
 ]
 
 _OS_NEGATIVE_FILTER = {}