Change SQL to improve performance.

To know the number of images, use "COUNT(*)" instead of "_id" in SQL.
Using "_id" gets all result set. and when getCount() is called, CursorWindow is filled.
But using "COUNT(*)" gets just 1by1 data.
So using "COUNT(*)" is more faster than now.
And this SQL is called everytime per a file during a file transfer in MTP
The better way is by using "EXIST".
But if using "EXIST", modify MediaProvider.call() method.
So i applied just a "COUNT(*)"

Change-Id: Ic5882af0fad2304f836b7b7043a4746359391609
Signed-off-by: muzbit.kim <muzbit.kim@lge.com>
Forward Port: Hide USB Debugging Icon [1/2]

Change-Id: Ibd63a9df207ddfb67dc16fbd44697261a9f6f0b4
Forward Port: Add Camera sound toggle [1/3]

Change-Id: I9e90f606d528eea08a41c35e75cd189e765c5d97
MediaScanner behavior on boot (1/3)

Lets you enable/disable/ask (with a notification) media scanning on boot.
Can speed up boot and reduce initial boot lag from MediaScanner

Change-Id: I634ae96b1dcb493b966b4653589cd97523b63da7
Frameworks: add abillity to use quick settings pulldown on the left side

This commit gives the ability to use quick settings pulldown on the left
or right edge of the statusbar. As well this respects still RTL layouts
where it logically should change to the oposite side.

Change-Id: Ibdf0894347e1ed3871f685afd5a29f47efe23a4b