AdjustLiveBytes and friends takes a heap object pointer instead of an address.

AdjustLiveBytes and friends takes a heap object pointer instead of an address.

That makes going to the page safe. Addresses can be in arbitrary locations of an object, e.g. in a large object but not on the first 1M page.
BUG=

Committed: https://crrev.com/8548ea5d1a38412531a71c5a647baf8c1c8b1ea0
Cr-Commit-Position: refs/heads/master@{#29991}

[Hannes Payer (out of office), 2015-08-03 17:08:44]

hpayer@chromium.org changed reviewers:
+ mlippautz@chromium.org, ulan@chromium.org

[Michael Lippautz, 2015-08-03 19:06:05]

lgtm

[Hannes Payer (out of office), 2015-08-04 06:33:17]

The CQ bit was checked by hpayer@chromium.org

[commit-bot: I haz the power, 2015-08-04 06:33:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1256203004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1256203004/1

[commit-bot: I haz the power, 2015-08-04 07:02:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-04 07:03:10]

Patchset 1 (id:??) landed as
https://crrev.com/8548ea5d1a38412531a71c5a647baf8c1c8b1ea0
Cr-Commit-Position: refs/heads/master@{#29991}