cc: Drop an unused member variable from tiling data iterators

cc: Drop an unused member variable from tiling data iterators

Tiling data iterators need tiling data pointer only in constructors thus
there is no need to store that pointer into a member variable.

Committed: https://crrev.com/4d9f70526dc8d1281220e78202e4a3debbdda1af
Cr-Commit-Position: refs/heads/master@{#308330}

[USE eero AT chromium.org, 2014-12-12 14:53:22]

e.hakkinen@samsung.com changed reviewers:
+ danakj@chromium.org, enne@chromium.org

[USE eero AT chromium.org, 2014-12-12 14:53:23]

This a small class size optimization. PTAL.

[vmpstr, 2014-12-12 16:27:35]

vmpstr@chromium.org changed reviewers:
+ vmpstr@chromium.org

[vmpstr, 2014-12-12 16:27:35]

lgtm

[USE eero AT chromium.org, 2014-12-15 08:49:49]

The CQ bit was checked by e.hakkinen@samsung.com

[commit-bot: I haz the power, 2014-12-15 08:50:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/798973003/1

[commit-bot: I haz the power, 2014-12-15 09:40:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-15 09:41:24]

Patchset 1 (id:??) landed as
https://crrev.com/4d9f70526dc8d1281220e78202e4a3debbdda1af
Cr-Commit-Position: refs/heads/master@{#308330}