Fix CFI errors in Oilpan

Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the object has
a vtable or not, but this causes a CFI error if the object doesn't have the polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193
Committed: https://crrev.com/71b71dabac9102c1f2d48040ca15ca288803571f
Cr-Commit-Position: refs/heads/master@{#426615}

[haraken, 2016-10-20 17:46:39]

haraken@chromium.org changed reviewers:
+ keishi@chromium.org, krasin@chromium.org

[haraken, 2016-10-20 17:46:39]

PTAL

[krasin1, 2016-10-20 18:06:43]

Description was changed from

==========
Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the
object has
a vtable or not, but this causes a CFI error if the object doesn't have the
polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193
==========

to

==========
Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the
object has
a vtable or not, but this causes a CFI error if the object doesn't have the
polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193
==========

[krasin1, 2016-10-20 18:06:43]

krasin@chromium.org changed reviewers:
+ pcc@chromium.org
- krasin@chromium.org

[krasin1, 2016-10-20 18:07:20]

On 2016/10/20 17:46:39, haraken wrote:
> PTAL

Sorry, I am on vacation this week. I have added Peter as the replacement
reviewer.

Peter, can you please take a look?

[pcc1, 2016-10-20 20:12:40]

LGTM

[haraken, 2016-10-20 20:31:40]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2016-10-20 20:32:34]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-20 22:11:33]

Description was changed from

==========
Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the
object has
a vtable or not, but this causes a CFI error if the object doesn't have the
polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193
==========

to

==========
Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the
object has
a vtable or not, but this causes a CFI error if the object doesn't have the
polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193
==========

[commit-bot: I haz the power, 2016-10-20 22:11:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-21 13:23:23]

Description was changed from

==========
Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the
object has
a vtable or not, but this causes a CFI error if the object doesn't have the
polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193
==========

to

==========
Fix CFI errors in Oilpan

Oilpan is currently casting an object to a polymorphic type to check if the
object has
a vtable or not, but this causes a CFI error if the object doesn't have the
polymorphic type.
This CL fixes the issue, follwing the krasin's advice on the bug.

BUG=601193

Committed: https://crrev.com/71b71dabac9102c1f2d48040ca15ca288803571f
Cr-Commit-Position: refs/heads/master@{#426615}
==========

[commit-bot: I haz the power, 2016-10-21 13:23:24]

Patchset 1 (id:??) landed as
https://crrev.com/71b71dabac9102c1f2d48040ca15ca288803571f
Cr-Commit-Position: refs/heads/master@{#426615}