fw/base: MOAR misc fixes & enhancements

Make ImageView drawable update more efficient in some cases.

When updating the view's drawable via setImageResource or setImageURI,
make sure to skip the layout pass if the old and new drawable have equal
sizes. This follows what is already done for setDrawable().

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

ActivityManagerService: stay away from zombie content providers

When the lowmemorykiller kills a content provider in an unfortunate
moment, an innocent client app can become attached to a zombie provider
and be unconditionally killed moments after, when the dead provider is
being removed.
Prevent this race by addition of isAlive function to Process.java that
determines whether a process is still running and is not only a zombie,
add a check of the state of the provider process to getContentProviderImpl.

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

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

bootanimation: fix usage of LOGW

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.

audio: libaudioeffect_jni GREF leak fix

- Excessive JNI global reference in AudioEffects.
- Global references created during native setup
  are not deleted.
- Global references are deleted in setup failure
  and during native release.

CRs-fixed: 413633
(cherry picked from commit f60e70097b84c4ef26eeb31024d52e5b1fc8aa64)
(cherry picked from commit 9c9279277ad10582ff3dcf5cad576d2d7f036569)

Call to equals() comparing different types (FindBugs)

Call to HashSet<PrintServiceInfo>.equals(ArrayList<PrintServiceInfo>).
The result of this comparison will always be false.

MiniThumbFile: Fix image/bitmap retrieval

Change I66005dd69b0a5c8f4353bd7a8225d163a654fd2d changed the insertion
and creation indexing mechanism, but the retrieval method was still
using the old sparse one. Fixit

Fixes android.provider.cts.MediaStore_Images_MediaTest#testInsertImageWithBitmap,
android.provider.cts.MediaStore_Images_MediaTest#testInsertImageWithImagePath,
android.provider.cts.MediaStore_Images_ThumbnailsTest#testQueryExternalMiniThumbnails,
and android.provider.cts.MediaStore_Video_ThumbnailsTest#testGetThumbnail

Memory leak in IInputMethodSessionWrapper executeMessage

In some cases the executeMessage is called with
mInputMethodSession == null. For the messages

DO_UPDATE_SELECTION, DO_APP_PRIVATE_COMMAND

memory is leaked. This commit recycles the args freeing
the allocated memory.

Fix resource leak: When call MediaMetadataRetriever.setDataSource or getFrameAtTime should ensure call release in finally to avoid resource leak
                   Patch set 2: Remove unnecessary white spaces

Fix certain setting writes being incorrectly skipped.

If a value that previously had a very long value (over the 500 char
threshold) is now set to null, isRedundantSetValue would incorrectly
return true even though the value was changed.

Change-Id: I3ccfc311546abe2b2b18262f76faba75e494075e

Conflicts:
	cmds/bootanimation/BootAnimation.cpp
	services/java/com/android/server/am/UsageStatsService.java

Conflicts:
	services/java/com/android/server/am/UsageStatsService.java