Rename InvalidatableStyleInterpolation to InvalidatableInterpolation

Rename InvalidatableStyleInterpolation to InvalidatableInterpolation

This is a clean up patch that renames InvalidatableStyleInterpolation
to InvalidatableInterpolation since it no longer inherits from
StyleInterpolation.

BUG=530436
Committed: https://crrev.com/e0c57754c71e605d0de7cfe20178eb93f7d82585
Cr-Commit-Position: refs/heads/master@{#356746}

[alancutter (OOO until 2018), 2015-10-26 01:15:46]

alancutter@chromium.org changed reviewers:
+ dstockwell@chromium.org

[dstockwell, 2015-10-27 06:55:12]

lgtm

[alancutter (OOO until 2018), 2015-10-28 00:13:00]

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

[commit-bot: I haz the power, 2015-10-28 00:14:16]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1412313005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1412313005/1

[commit-bot: I haz the power, 2015-10-28 00:18:02]

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

[commit-bot: I haz the power, 2015-10-28 00:18:03]

Dry run: Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  mac_chromium_gn_rel on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_gn_r...)
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[alancutter (OOO until 2018), 2015-10-28 12:22:24]

The CQ bit was checked by alancutter@chromium.org

[commit-bot: I haz the power, 2015-10-28 12:22:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1412313005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1412313005/1

[commit-bot: I haz the power, 2015-10-28 13:18:55]

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

[commit-bot: I haz the power, 2015-10-28 13:18:55]

Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[alancutter (OOO until 2018), 2015-10-29 02:14:13]

The CQ bit was checked by alancutter@chromium.org

[commit-bot: I haz the power, 2015-10-29 02:14:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1412313005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1412313005/1

[commit-bot: I haz the power, 2015-10-29 02:57:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-29 02:58:24]

Patchset 1 (id:??) landed as
https://crrev.com/e0c57754c71e605d0de7cfe20178eb93f7d82585
Cr-Commit-Position: refs/heads/master@{#356746}