fix disposal of phantom handles in GlobalValueMap

fix disposal of phantom handles in GlobalValueMap

additionally, add a drive by fix to WeakCallbackInfo

R=jochen@chromium.org, erikcorry@chromium.org

BUG=

Committed: https://crrev.com/adeb82ef236158f39d875592aed7ca43b11e9671
Cr-Commit-Position: refs/heads/master@{#27407}

[dcarney, 2015-03-24 11:29:34]

dcarney@chromium.org changed reviewers:
+ erikcorry@chromium.org, jochen@chromium.org

[dcarney, 2015-03-24 11:29:42]

ptal

[Erik Corry, 2015-03-24 12:16:19]

erik.corry@gmail.com changed reviewers:
+ erik.corry@gmail.com

[Erik Corry, 2015-03-24 12:16:20]

https://codereview.chromium.org/1026283004/diff/1/test/cctest/test-api.cc
File test/cctest/test-api.cc (right):

https://codereview.chromium.org/1026283004/diff/1/test/cctest/test-api.cc#new...
test/cctest/test-api.cc:3244: CHECK_EQ(IntKeyToVoidPointer(key),
info.GetInternalField1());
The test only uses the deprecated version, not the new version.

[jochen (gone - plz use gerrit), 2015-03-24 12:19:40]

lgtm with test updated

[dcarney, 2015-03-24 12:33:25]

The CQ bit was checked by dcarney@chromium.org

[dcarney, 2015-03-24 12:33:26]

The patchset sent to the CQ was uploaded after l-g-t-m from jochen@chromium.org
Link to the patchset: https://codereview.chromium.org/1026283004/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-03-24 12:33:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1026283004/20001

[commit-bot: I haz the power, 2015-03-24 13:22:12]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-24 13:22:22]

Patchset 2 (id:??) landed as
https://crrev.com/adeb82ef236158f39d875592aed7ca43b11e9671
Cr-Commit-Position: refs/heads/master@{#27407}