tree c3af28e17543bc27b08368a49c29c6b632cf8ec0
parent 62d5bc745a4fd7f305a47b628b1fe902ee9d29f8
author Dianne Hackborn <hackbod@google.com> 1400283157 -0700
committer Dianne Hackborn <hackbod@google.com> 1400617465 -0700

Delay the dispatching of non-wakeup alarms.

When the screen is off, there are no guarantees about when
non-wakeup alarms will be dispatched.  Historically they are
dispatched any time the device wakes up.  With this change,
we will delay the dispatch until sometime later.

The amount of delay is determined by how long the screen has
been off.  Currently there are three possible delays: up to
2 minutes if the screen has been off for less than 5 minutes;
up to 15 minutes if it has been off for less than 30 minutes;
and otherwise up to an hour.

When the screen is turned on or a wakeup alarm is dispatched,
all delayed alarms will also be dispatched.

Note that one of the things this delays is TIME_TICK, which
means the in many cases we won't deliver TIME_TICK until the
screen is in the process of waking up.  The current
implementation causes this to be delayed until the SCREEN_ON
broadcast is sent; we probably want to improve this to have
the power manager tell the alarm manager about the screen
turning on before it sends that broadcast, to help make sure
things like the lock screen can update their current time
before the screen is actually turned on.

In addition, switch all of the alarm stats to use the new
PendingIntent "tag" identifier for its operations, instead
of the old code to try to construct a pseudo-identifier
by retrieving the raw Intent.

Also add a new package manager command to immediately write
packages.xml.

Change-Id: Id4b14757cccff9cb2c6b36de994de38163abf615