bootanim: Don't cache textures if they're expected to use a lot of VRAM

bootanimation cached all the textures generated until the animation
was completed.
For Hi-res animations with lots of frames (like the new CM9 anim on
xhdpi devices), this implied using large amounts of video RAM, more
than most devices actually have available, causing the animation to
stall (and in some cases, gralloc to lock up); so if an animation is
expected to use a lot of RAM (rough estimation based on frame size
and number of frames), disable cache entirely and generate the textures
on demand

Change-Id: I157e5cdde2aab1d82d980d77cbedd9f127c83a1d

Conflicts:

	cmds/bootanimation/BootAnimation.cpp
bootanimation: performance enhancements

This patch implements two simple performance enhancements, which
might benefit devices. They are completely opt-in by setting
the following variables.

  * TARGET_BOOTANIMATION_PRELOAD: will preload the bootanimation
    zip to memory; this is handy on devices where the storage
    might be slow. By preloading it, we get quick access to the
    zip file, and the animation doesn't stutter.

  * TARGET_BOOTANIMATION_TEXTURE_CACHE: allows maintainers to
    force texture cache on/off.

Also fixes the sign warnings related to int / size_t comparison

Change-Id: Ie92d1b0aa90b43ba39c368a2a33657a60c3a64b5

Conflicts:

	cmds/bootanimation/BootAnimation.cpp
bootanimation: fix usage of LOGW

Change-Id: I1d59df9f44f414d80058a532644cbbb40e22c701
add Settings.System boolean helper methods

Change-Id: I749d15a7c6956d938698f16ebde185b114f7f15a
Signed-off-by: Roman Birg <romanbirg@gmail.com>
ContentProviderRecord: Remove external process reference when finalized

ContentProviderRecords is removed from provider map by activity manager service
when the process hosting the content providers terminates and this causes GC
to free the content provider records but the reference to external process
using the content provider isn't cleared. Fix is to clear the reference and
unlink for death notification.

Change-Id: I67fd10cee57b02257792d0c9b4569fe11dea7648
PackageInfo class incorrectly referenced as a struct.

Change-Id: Ie38b2b3ed82a6d5f99b6c574af53ae5bda7371d5
bootanimation: allow using RGB565 instead of ARGB8888

RGB565 uses considerably less memory, and together with texture
cache, it allows us to offer a really smooth bootanimation on
not so powerful devices.

Change-Id: I9da8fd7e6a587b5895519dd0983ec9b8f676771b
fix NAT detection in SipService

The NAT detection in SipService just checks if the client IP is a
private address. In this case keep alive is enforced. But if you
use a server which also has a private address, keep alive should not
be enabled to save battery.
This patch modifies the NAT detection to also check the server IP.
If both are private, NAT is not detected.

Change-Id: If4baaf1866253ca6c432e5cc4b07e3ebd9de6ba1