Enable chromedriver tests testActionsMouse* and testMouseMoveTo

When I changed dispatching events from synchronously to asynchronously,
it causes some regression because we have not received the result from
the actions but the tests already finished. We should make the default
way of dispatching events as synchronously, when we really need
send events asynchronously then we add this flag. Now I added this flag
so I can enable the tests again.


Bug: 999750
Change-Id: Ibe6185b63db4a731674e758cdf484896a6ced766
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1783641
Commit-Queue: Lan Wei <lanwei@chromium.org>
Reviewed-by: John Chen <johnchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#693389}

chrome/test/chromedriver/test/run_py_tests.py

@@ -103,10 +103,6 @@ _OS_SPECIFIC_FILTER['win'] = [
     'ChromeDownloadDirTest.testFileDownloadWithGetHeadless',
 ]
 _OS_SPECIFIC_FILTER['linux'] = [
-    'ChromeDriverTestLegacy.testMouseMoveTo',
-    # https://bugs.chromium.org/p/chromium/issues/detail?id=1000530
-    'ChromeDriverTest.testActionsMouseMove',
-    'ChromeDriverTest.testActionsMouseDrag',
 ]
 _OS_SPECIFIC_FILTER['mac'] = [
     # https://bugs.chromium.org/p/chromedriver/issues/detail?id=1927
@@ -116,10 +112,6 @@ _OS_SPECIFIC_FILTER['mac'] = [
     'ChromeDownloadDirTest.testFileDownloadAfterTabHeadless',
     'ChromeDownloadDirTest.testFileDownloadWithClickHeadless',
     'ChromeDownloadDirTest.testFileDownloadWithGetHeadless',
-    'ChromeDriverTestLegacy.testMouseMoveTo',
-    # https://bugs.chromium.org/p/chromium/issues/detail?id=1000530
-    'ChromeDriverTest.testActionsMouseMove',
-    'ChromeDriverTest.testActionsMouseDrag',
 ]
 
 _DESKTOP_NEGATIVE_FILTER = [