Update layout tests to use floats for touch point locations.

Update layout tests to use floats for touch point locations.

plugins/touch-events-details.html and plugins/transformed-events.html
started to fail when touch point locations became floating point.

This patch fixes that. This depends on
https://codereview.chromium.org/210083002/.

BUG=354787
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170179

[tdresser, 2014-03-26 15:25:54]

PTAL.

This is the follow up to https://codereview.chromium.org/210083002/.

[Dirk Pranke, 2014-03-26 19:39:52]

lgtm

[tdresser, 2014-03-26 19:41:43]

The CQ bit was checked by tdresser@chromium.org

[commit-bot: I haz the power, 2014-03-26 19:41:52]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tdresser@chromium.org/210093002/1

[commit-bot: I haz the power, 2014-03-26 19:52:00]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-26 19:52:01]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[tdresser, 2014-03-26 19:54:24]

The CQ bit was checked by tdresser@chromium.org

[commit-bot: I haz the power, 2014-03-26 19:54:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tdresser@chromium.org/210093002/1

[commit-bot: I haz the power, 2014-03-26 20:29:32]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-26 20:29:33]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[tdresser, 2014-03-27 12:09:15]

The CQ bit was checked by tdresser@chromium.org

[commit-bot: I haz the power, 2014-03-27 12:09:25]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tdresser@chromium.org/210093002/1

[commit-bot: I haz the power, 2014-03-27 12:31:41]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-27 12:31:41]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[tdresser, 2014-03-27 13:25:38]

The CQ bit was checked by tdresser@chromium.org

[commit-bot: I haz the power, 2014-03-27 13:25:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tdresser@chromium.org/210093002/1

[commit-bot: I haz the power, 2014-03-27 14:02:15]

Change committed as 170179