Retrieve "connected" property from BLE devices.

Retrieve "connected" property from BLE devices.

We have to use the SetupDIGetDeviceProperty API to retrieve this specific property, as the "connected" status is something common to many PnP devices.

BUG=388016
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=282212

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=282633

[xiyuan, 2014-07-09 20:42:30]

lgtm

[rpaquay, 2014-07-09 21:57:55]

The CQ bit was checked by rpaquay@chromium.org

[commit-bot: I haz the power, 2014-07-09 21:58:57]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rpaquay@chromium.org/379943003/1

[commit-bot: I haz the power, 2014-07-10 01:36:49]

Change committed as 282212

[horo, 2014-07-10 09:32:29]

A revert of this CL has been created in
https://codereview.chromium.org/380173002/ by horo@chromium.org.

The reason for reverting is: Tests on XP are failing.

http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%282%29/builds...
http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%282%29.

[horo, 2014-07-10 09:34:51]

On 2014/07/10 09:32:29, horo wrote:
> A revert of this CL has been created in
> https://codereview.chromium.org/380173002/ by mailto:horo@chromium.org.
> 
> The reason for reverting is: Tests on XP are failing.
> 
>
http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%282%29/builds...
> http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%282%29.

We should use LoadLibrary and GetProcAddress to call SetupDIGetDeviceProperty
because it is not available in WinXP.

[rpaquay, 2014-07-11 16:19:12]

The CQ bit was checked by rpaquay@chromium.org

[commit-bot: I haz the power, 2014-07-11 16:19:46]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rpaquay@chromium.org/379943003/1

[commit-bot: I haz the power, 2014-07-11 16:21:09]

Change committed as 282633