PEEK [1/2]
Sensors are fully disabled when screen is on. When you turn the screen off,
it will start polling both gyroscope and proximity sensor values. If it detects
using the gyroscope sensor that device is lying on a table, it disables proximity
polling. If it detects with proximity sensor that it is in your pocket, it disables
gyroscope polling. This way, we save some battery from the beginning. Later, when you
receive a notification, it enables a partial wakelock (CPU on but at low frequency),
and starts listening for movement, either from getting it out your pocket or lifting
off from the table. If it detects those events, it will turn on screen and show the notification.
Wakelock timeouts on 10 secs, so if you receive a notification and there is no movement in that time,
sensors will stop polling after that time, disabling peek interaction until a new notification comes.
Peek doesn't process low and min priority notifications.

https://plus.google.com/+ParanoidAndroidCorner/posts/3wppxakBSVR

Contributors:
@D4rKn3sSyS
@Anu6is
@BigBrother1984

Change-Id: I995d17fde5a256f23fe37f35e43a0ee7e52663fb
Signed-off-by: Jesus David <jesdga95@gmail.com>
Signed-off-by: Curtis Mayers <curtis.mayers@gmail.com>
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

Change-Id: Ida92cb99dc703547c355fe520a25c53438ced1f4
(cherry picked from commit 4edb1a04ed152a831e4596aecf0f56ee56b659e7)
Signed-off-by: siracuervo <fl.siracusa@outlook.com.ar>

Conflicts:
	packages/SystemUI/res/values/cr_dimens.xml
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
PEEK: configurable pickup timeout (1/2)

- Allow the user to set different pickup timeout when a notification comes up through PEEK.

Change-Id: Ifcd2f13101dcf6973ebcf016bce5f5314e1ce04c
Signed-off-by: siracuervo <fl.siracusa@outlook.com.ar>