Update layout tests for touch text selection.

Touch text selection is going to be enabled on aura and these layout tests
needed to be updated. Long press on text will no longer show a context menu.

BUG=381152
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=175595

[Rick Byers, 2014-06-05 20:56:47]

LGTM, thanks!

[Zeeshan Qureshi, 2014-06-05 20:57:48]

The CQ bit was checked by zeeshanq@chromium.org

[commit-bot: I haz the power, 2014-06-05 20:58:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/zeeshanq@chromium.org/320453002/1

[commit-bot: I haz the power, 2014-06-05 22:13:04]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  mac_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/mac_blink_compile_dbg/bu...)

[Zeeshan Qureshi, 2014-06-05 22:43:51]

The CQ bit was unchecked by zeeshanq@chromium.org

[Zeeshan Qureshi, 2014-06-05 22:43:56]

The CQ bit was checked by zeeshanq@chromium.org

[commit-bot: I haz the power, 2014-06-05 22:43:58]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/zeeshanq@chromium.org/320453002/1

[commit-bot: I haz the power, 2014-06-05 22:47:45]

Change committed as 175595