GitLab

Revert of Remove smiluate-touch-screen-with-mouse content flag. (https://codereview.chromium.org/258503003/)

Reason for revert:
Somewhat speculative; looks like this caused TouchEmulatorTest failures on valgrind:

http://build.chromium.org/p/chromium.memory.fyi/builders/Linux%20Tests%20%28tsan%29%283%29/builds/11052

TouchEmulatorTest.Pinch:
../../content/browser/renderer_host/input/touch_emulator_unittest.cc:254: Failure
Value of: ExpectedEvents()
Actual: "TouchEnd GestureFlingStart"
Expected: "TouchEnd GestureScrollEnd"

etc

Original issue's description:
> Remove smiluate-touch-screen-with-mouse content flag.
> 
> This is duplicated functionality now, as one can use DevTools touch emulation instead.
> 
> BUG=337142
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=266549

TBR=aelias@chromium.org,jochen@chromium.org,dgozman@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=337142

Review URL: https://codereview.chromium.org/260123003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266608 0039d316-1c4b-4281-b951-d872f2087c98