Reland: Enable touch text selection by default on desktop Aura

Reland: Enable touch text selection by default on desktop Aura

--disable-touch-editing can be used to disable touch text selection.

Originally landed as r274972, but reverted due to blink layout test
failures. Layout tests are fixed in r175595 (blink).

BUG=304872
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=274972

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=275452

[mohsen, 2014-06-04 21:30:48]

Please take a look

[sky, 2014-06-04 23:22:39]

LGTM

[mohsen, 2014-06-04 23:41:43]

The CQ bit was checked by mohsen@chromium.org

[commit-bot: I haz the power, 2014-06-04 23:43:27]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mohsen@chromium.org/305423003/1

[commit-bot: I haz the power, 2014-06-05 01:11:09]

Change committed as 274972

[Peter Beverloo, 2014-06-05 13:48:47]

A revert of this CL has been created in
https://codereview.chromium.org/313263004/ by peter@chromium.org.

The reason for reverting is: This change has broken two Blink layout-tests,
context-menu-on-long-press.html
and right-click-gestures-set-cursor-at-correct-position.html.

More relevant information, failed runs and output is available in the bug.

BUG=381152.

[mohsen, 2014-06-06 15:59:14]

The CQ bit was checked by mohsen@chromium.org

[commit-bot: I haz the power, 2014-06-06 16:00:36]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mohsen@chromium.org/305423003/1

[commit-bot: I haz the power, 2014-06-06 16:02:05]

Change committed as 275452