device/bluetooth: Fix copy constructor of BluetoothServiceAttributeValueBlueZ

device/bluetooth: Fix copy constructor of BluetoothServiceAttributeValueBlueZ

The copy constructor was trying to call DeepCopy() against a nullptr. This adds
a check if the type is NULLTYPE and return base::Value() if so.

BUG=b:30963813
TEST=call the copy constructor with a NULLTYPE instance to see if it crashes

Committed: https://crrev.com/4c369070c3e89056b3a90074315ac91b960862bf
Cr-Commit-Position: refs/heads/master@{#414746}

[Miao, 2016-08-26 15:27:22]

The CQ bit was checked by mcchou@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-26 15:27:42]

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

[Miao, 2016-08-26 15:28:19]

mcchou@chromium.org changed reviewers:
+ rkc@chromium.org

[Miao, 2016-08-26 15:28:20]

Hello rkc@, can you help with reviewing? Thanks.

[Miao, 2016-08-26 15:28:39]

mcchou@chromium.org changed reviewers:
+ puthik@chromium.org

[Miao, 2016-08-26 15:31:34]

The CQ bit was checked by mcchou@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-26 15:32:06]

Dry run: 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, 2016-08-26 16:49:32]

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

[commit-bot: I haz the power, 2016-08-26 16:49:32]

Dry run: This issue passed the CQ dry run.

[Rahul Chaturvedi, 2016-08-26 17:10:25]

steel@chromium.org changed reviewers:
+ steel@chromium.org

[Rahul Chaturvedi, 2016-08-26 17:10:25]

steel@chromium.org changed reviewers:
+ steel@chromium.org

[Rahul Chaturvedi, 2016-08-26 17:10:25]

lgtm

lgtm

[Rahul Chaturvedi, 2016-08-26 17:10:26]

lgtm

[Rahul Chaturvedi, 2016-08-26 17:11:07]

Double clicking on the quick lgtm button does that apparently.

[mcchou, 2016-08-26 17:34:53]

The CQ bit was checked by mcchou@google.com

[commit-bot: I haz the power, 2016-08-26 17:35:42]

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, 2016-08-26 18:00:36]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-08-26 18:12:57]

Description was changed from

==========
device/bluetooth: Fix copy constructor of BluetoothServiceAttributeValueBlueZ

The copy constructor was trying to call DeepCopy() against a nullptr. This adds
a check if the type is NULLTYPE and return base::Value() if so.

BUG=b:30963813
TEST=call the copy constructor with a NULLTYPE instance to see if it crashes
==========

to

==========
device/bluetooth: Fix copy constructor of BluetoothServiceAttributeValueBlueZ

The copy constructor was trying to call DeepCopy() against a nullptr. This adds
a check if the type is NULLTYPE and return base::Value() if so.

BUG=b:30963813
TEST=call the copy constructor with a NULLTYPE instance to see if it crashes

Committed: https://crrev.com/4c369070c3e89056b3a90074315ac91b960862bf
Cr-Commit-Position: refs/heads/master@{#414746}
==========

[commit-bot: I haz the power, 2016-08-26 18:12:58]

Patchset 2 (id:??) landed as
https://crrev.com/4c369070c3e89056b3a90074315ac91b960862bf
Cr-Commit-Position: refs/heads/master@{#414746}