Revert "Fix a bootloop problem when /data/system/usagestats/usage-history.xml is empty."

This reverts commit e6c123adfd52165d53f468eecf24f8ec3db897bf.
Fix broken XML parsing idiom.

Code that expected a single top level element in an XML file
was doing something like :

while (type != START_TAG) { next(); }

This would loop forever when the XML being parsed was empty,
where each call to XmlPullParser.next() would return END_DOCUMENT.

bug: https://code.google.com/p/android/issues/detail?id=64173
Change-Id: I7543203e976a8999ae471a6c2d629249a87011bb
p2p: Display P2P peer MAC address if device name is empty.

Display MAC address of a P2P peer in an invitation prompt
message on receiving invitation request from the P2P peer
with empty device name.

Change-Id: Icabeb91d666437746eb5a733ec582849eb7295a5
CRs-Fixed: 506109
Add touch feedback to the clear all recents button

5 minutes of Photoshop™.

Change-Id: Idf8c97cf08a192605208cbee6f2ae41e0798e8d1
Show confirmation for deleted screenshot.

Change-Id: I4a36cf06bf252e5e15fe08fbd054dc64a0a507ae
Revert "Remove the navigation camera icon in keyguard if disabled by DPM"

This reverts commit 6eef309ae2e85e96f276b18a4f989f2086e2cf9c. The camera
widget itself not showing is a bug with the lock screen. The navigation
icon should be displayed.

Change-Id: If6edf7e70f48a1b272d336e9a9245095af10b38f
Fix fatal exception due to missing looper for current thread.

While creating handler for the thread, there was fatal exception getting
thrown because the present thread does not have a looper. So passing the
applications looper to be used , while creating the handler to avoid this
exception.

Change-Id: Id2e3ed61f5691c8319eb7bc20ad970eb6758e765
(cherry picked from commit f5d1769b4357fb8d86fc31f7115b55b567a20ed1)
(cherry picked from commit d0a7c5833b90fe4d8fe8f968b53a7028720ffd8c)