Remove obsolete overload of applyViewportDeltas from WebWidget API.

Remove obsolete overload of applyViewportDeltas from WebWidget API.

The remaining users on the Chromium-side were removed in r331955.

BUG=304869
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=196435

[bokan, 2015-06-03 17:07:57]

bokan@chromium.org changed reviewers:
+ rbyers@chromium.org

[bokan, 2015-06-03 17:07:58]

Hey Rick, here's a quickie.

[bokan, 2015-06-03 17:08:10]

The CQ bit was checked by bokan@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-06-03 17:08:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1156903003/1

[Rick Byers, 2015-06-03 17:46:35]

LGTM

[commit-bot: I haz the power, 2015-06-03 20:46:39]

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

[commit-bot: I haz the power, 2015-06-03 20:46:40]

Dry run: Try jobs failed on following builders:
  win_blink_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/65079)

[bokan, 2015-06-03 20:47:03]

The CQ bit was checked by bokan@chromium.org

[commit-bot: I haz the power, 2015-06-03 20:47:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1156903003/1

[commit-bot: I haz the power, 2015-06-03 21:47:47]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=196435