Revert "Reland "[ChromeDriver] Use Browser.close to quit""

This reverts commit 47c575abefd23410eb2b4023a06b171dd3a8b64a.

Reason for revert: Causes noticeable slowdown on Windows and some Mac.
Reverting for now, and will re-visit after ChromeDriver 2.39 release.

Original change's description:
> Reland "[ChromeDriver] Use Browser.close to quit"
> 
> This is a reland of 3edba584fc9d669b16f26a6516dc080197144485
> 
> Original change's description:
> > [ChromeDriver] Use Browser.close to quit
> >
> > Currently, ChromeDriver closes desktop Chrome by simply killing the
> > top-level Chrome process. This isn't graceful, and causes problems
> > in some scenarios. This commit sends a Browser.close command to close
> > the browser gracefully.
> >
> > Bug: chromedriver:2311
> > Change-Id: Idec9338b094f0aab89022b8453dd2a98268ad1e7
> > Reviewed-on: https://chromium-review.googlesource.com/1037585
> > Commit-Queue: John Chen <johnchen@chromium.org>
> > Reviewed-by: Jonathon Kereliuk <kereliuk@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#556689}
> 
> TBR=kereliuk@chromium.org
> 
> Bug: chromedriver:2311
> Change-Id: I302e064532fdadb1b6e40d53fbfe3cf72601a731
> Reviewed-on: https://chromium-review.googlesource.com/1054117
> Reviewed-by: John Chen <johnchen@chromium.org>
> Commit-Queue: John Chen <johnchen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#557613}

TBR=johnchen@chromium.org,kereliuk@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: chromedriver:2311
Change-Id: Iabef56858621949e02e431e9df4a03649572f5da
Reviewed-on: https://chromium-review.googlesource.com/1077027
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: John Chen <johnchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#562535}
1 file changed