[ChromeDriver] ChromeDriver 2.44 release

Change-Id: Ic230f0ab94f94adfd96cb513710d1c129e96d1db
Reviewed-on: https://chromium-review.googlesource.com/c/1343053Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Artur Khachatryan <khachatryan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609531}

chrome/test/chromedriver/VERSION

-2.43
+2.44