Clarify how to replace ForceSet

Clarify how to replace ForceSet

BUG=none
R=vogelheim@chromium.org
LOG=n

Committed: https://crrev.com/5335e7d55a99f931f4de3b0c4b6ba52291030c2c
Cr-Commit-Position: refs/heads/master@{#32263}

[vogelheim, 2015-11-25 10:06:57]

lgtm

https://codereview.chromium.org/1473783003/diff/1/include/v8.h
File include/v8.h (right):

https://codereview.chromium.org/1473783003/diff/1/include/v8.h#newcode2923
include/v8.h:2923: V8_DEPRECATE_SOON("Use v8::Object::GetHidden instead.",
GetHidden -> GetPrivate

[Sorry for drive-by comment, but since you're fixing deprecation warnings... :-/
]

[jochen (gone - plz use gerrit), 2015-11-25 10:10:22]

The CQ bit was checked by jochen@chromium.org

[jochen (gone - plz use gerrit), 2015-11-25 10:10:22]

The patchset sent to the CQ was uploaded after l-g-t-m from
vogelheim@chromium.org
Link to the patchset: https://codereview.chromium.org/1473783003/#ps20001
(title: "updates")

[commit-bot: I haz the power, 2015-11-25 10:10:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1473783003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1473783003/20001

[commit-bot: I haz the power, 2015-11-25 11:17:16]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-25 11:18:03]

Patchset 2 (id:??) landed as
https://crrev.com/5335e7d55a99f931f4de3b0c4b6ba52291030c2c
Cr-Commit-Position: refs/heads/master@{#32263}