WiFi: Fix Null Pointer Exception in Wifi Settings dialog

This patch checks that the activity remains available in the
dialog onclick callback before using it.

Change-Id: I1886b87498455e890962415a864da803c94561a4
Orig-Change-Id: I1d7aba1b43a00568dcfaf580e7082aadc12ebde5
Signed-off-by: Loic Poulain <loicx.poulain@intel.com>
Signed-off-by: Jian Luo <jian.luo@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 122149
Memory.java: disable remove unmount/mount button until unmount/mount is done

Disable unmount/mount button since the end user will click them again before
the setting is updated. So disable them until setting updated the status

Change-Id: I8bc6a06a76bd4636e4c65a334ee00503118d5bbf
Author: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Shuo Gao <shuo.gao@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 47861
Settings: Backup account becomes grey and cannot be tapped after check the "Back up my data".

Rootcause: If there is no valid back up transport, by default, Android
will use LocalTransport, which is only for debug perpose and dose not
have valid config intent.
The back  up transport is set  in settings provider.
And in back settings, the config intent is not
validated after enable back up is checked.
platform should think about to provide valid back up transport in RHB.

Change-Id: I2924b1a7c656eb8f3a7c079866bc3f012cb01f74
Author: Jianchun Shen <jianchunx.shen@intel.com>
Signed-off-by: Jianchun Shen <jianchunx.shen@intel.com>
Signed-off-by: Shuo Gao <shuo.gao@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 51126
WiFi: "Connect" option disappear after rotating.

The connect option disappears because there is a problem in saving and
restoring the state of the access point showed in the dialog box. When a
rotation accurs, the framework calls onSaveInstanceState(Bundle outState)
of the wifisettings activity. In this method, the state of the access is
saved, but not its rssi level. After a rotation, when restoring the access
point state, the rssi is initialized to the default value, which means out of
range. This is why the connect option is not displayed. I fixed the issue by
saving and restoring the rssi level of the access point.

Change-Id: Ibd58132c922828941603673383ff81f25d61556e
Orig-Change-Id: I624cc8ce82a69fd94931088dc0f7833663ef0772
Signed-off-by: Paul Naoumenko <paulx.naoumenko@intel.com>
Signed-off-by: Jean-Marie Lemetayer <jean-mariex.lemetayer@intel.com>
Signed-off-by: Jian Luo <jian.luo@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 34109