Fix uninitialized member from PageIndicator::PageIndicator().

Fix uninitialized member from PageIndicator::PageIndicator().

Per msan report, the line in question reads:  
  if (timer_id == fade_out_timer_id_) {
so initialize fade_out_timer_id_ in the constructor.

BUG=411177
Committed: https://crrev.com/f4680290857fdc78eb9ff79305aead08b29d56ca
Cr-Commit-Position: refs/heads/master@{#294055}

[Tom Sepez, 2014-09-08 20:56:08]

tsepez@chromium.org changed reviewers:
+ gene@chromium.org

[Tom Sepez, 2014-09-08 20:56:08]

Gene, please review.  Thanks.

[gene, 2014-09-08 21:06:15]

lgtm

[Tom Sepez, 2014-09-08 21:17:15]

The CQ bit was checked by tsepez@chromium.org

[commit-bot: I haz the power, 2014-09-08 21:24:30]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tsepez@chromium.org/557493002/1

[commit-bot: I haz the power, 2014-09-09 05:05:58]

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

[commit-bot: I haz the power, 2014-09-09 05:05:59]

Exceeded time limit waiting for builds to trigger.

[Tom Sepez, 2014-09-10 00:02:04]

The CQ bit was checked by tsepez@chromium.org

[commit-bot: I haz the power, 2014-09-10 00:06:48]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tsepez@chromium.org/557493002/1

[commit-bot: I haz the power, 2014-09-10 00:52:46]

Committed patchset #1 (id:1) as 069ea176275c9adc81e5f23bf3044c593f722259

[commit-bot: I haz the power, 2014-09-10 03:57:05]

Patchset 1 (id:??) landed as
https://crrev.com/f4680290857fdc78eb9ff79305aead08b29d56ca
Cr-Commit-Position: refs/heads/master@{#294055}