Revert "Framework: Add support to enable/disable Electron Beam (1/2)"

This reverts commit 3d9a74923ab91ca018af3a9131b446d958fc5b88.

in preparation for Slim's electron beam implementation

Change-Id: I848b75f47f53b56a289d5ffd12a02efdb9c24eda
Frameworks: Slims ElectronBeam get some love (1/2)

Features:
- You can select different crt off animation modes if device overlay does not disable it at all
- disabled
- always horizontal (stock behaviour)
- always vertical (screen collapse from left and right to the middle)
- orientation dependent (means portrait = horizontal animation, landscape = vertical animation)
- some minor fixes/code style improvements to 4.3 implementation

Change-Id: I02543a242f8f570438f2ab97a19b6ffe1b4dba1c
fb: add scale down crt animation - thanks a ton to xploidwild

really nice idea...fits perfectly into our animation options
for CRT

Change-Id: I562ed272e7106482ef8d6b477a46eb5d81569dbb
Revert "Fix a bootloop problem when /data/system/usagestats/usage-history.xml is empty. This often occurs after an incomplete reboot/shutdown or battery pull."

This reverts commit e290de5ecdd591d1978af1b0e9b3303696c849ed.

Change-Id: I5c30ef4560bed7c83243517ba8868069f2777613
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
Update the color of the expandable volume panel icon

This still retains the old settings icon since it
happens to fit perfectly. Pressing it does indeed
show you a bunch of sliders like the icon indicates.

Also add xhdpi and xxhdpi versions.

Change-Id: I944a325c8871e1afc9d7163b0f23f7f9d8ae070a
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
Show confirmation for deleted screenshot.

Change-Id: I4a36cf06bf252e5e15fe08fbd054dc64a0a507ae