Squash: Memory leaks, NPEs, races and optimizations for fw/base

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Author:                             /!
Yongyi Li <yongyi.li.cn@gmail.com>  /!
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This is a combination of 13 commits.

The first commit's message is:

Fix a programmatic smooth scroll bug

Bug: smoothScrollToPosition() stops at child view of which height is
higher than list view itself.

Signed-off-by: Yongyi Li <yongyi.li.cn@gmail.com>

This is the 2nd commit message:

Fix infinite recursive loop

There is an apparent recursive loop at IntProperty.java
in method set(Object, Integer)

This method unconditionally invokes itself. This would seem
to indicate an infinite recursive loop that will result in a stack overflow.

This was brought over from out original JB branch.  Somehow, this got
overlooked, and never made it into JB42.

This is the 3rd commit message:

Rework thumbnail handling

Since ids of media file are usually not continuous, the original file of thumbnail are
sparse. When there are big numbers files on ex\
ternal storage, the size of this file will be horrible.
Ex, when the id is 20000, then the .thumbnails/.thumbdata3-xx file will be 50000*10k = 488.28M.
Can refer http://stackoverflow.com/questions/12396715/android-huge-thumbdata4-file-in-dcim-folder
Because after 4.0, MediaProvider will scan any files, this will be a big problem. So I modify MiniThumbFile.java to avoid this.
According to the id, we now produce an index file. In this index file, one id will use BYTES_PER_MINTHUMB_INDEX(8) bytes in offset (i\
d+1)*BYTES_PER_MINTHUMB_INDEX. The data of these 8 bytes is the index of thumbnail file. The first BYTES_PER_MINTHUMB_INDEX bytes kee\
p next available index. And when you need insert a thumbnail, the index increase by 1. In this way, the block data in thumbnail file \
will be continuous. And thus unnecessary zero paddings will not be saved.

This is the 4th commit message:

frameworks/base: Fix for the race in Wallpaperservice

Wallpaperservice has a race among message handler of
DO_DETACH and service's onDestroy. In certain cases,
the engine kept track in mActiveEngines is removed by
message handler of DO_DETACH and service's onDestroy
doesn't get a entry in mActivieEngines and isn't able
to invoke detach. This keeps the broadcast receiver,
mReceiver active and is unregistered by the framework
and a corresponding leak is reported.

  Later, the message handler of DO_DETACH continues
and invokes detach on mEngine, which attempts to
unregister mReceiver and framework throws an exception
"Receiver not registered: android.service.wallpaper.
WallpaperService$Engine$1@40874580" and causes the
framework to reboot.

  In case of system_server, WindownManagerPolicy and
android.server.ServerThread contest for access of
shared members, mActiveEngines and mEgine. Fix is to
protect the critical section via synchronized block.

This is the 5th commit message:

Make EntropyMixer mix in output of Hardware RNG into Linux RNG.

On devices with Hardware RNG (HW RNG), this makes EntropyMixer
periodically (every three hours) read 512 bytes from HW RNG and mix
them into the Linux RNG.

This is done without increasing Linux RNG's entropy estimates to
avoid having to trust the quality of the HW RNG. This approach cannot
reduce the quality of the Linux RNG output, but may increase it.

This is the 6th commit message:

build core/jni with fstrict

This is the 7th commit message:

Reduce EntropyMixer seed size from 4096 to 512 bytes.

The suggested seed size from Linux drivers/char/random.c is 512 bytes
rather than the 4096 bytes currently used.

This is the 8th commit message:

frameworks/base/: Fix black wallpaper issue when home pressed.

In the specified usecase, there is a completely new set of
windows that appear on the screen during rotation. And the
existing code in the framework ignores the drawstate of the
hidden windows.

Wait till the drawState is ready for the hidden windows also.

CRs-Fixed: 521758

This is the 9th commit message:

Fix to NullPointerException when activity is relaunched

When ChooseTypeAndAccountActivity is relaunched and resumed
by ActivityManager a call is made to onActivityResult without
first triggering onResume. This leads to mAccounts object
still being null.

Fixed by properly setting mAccounts object if it is null prior
to use after function onCreate has been called.

This is the 10th commit message:

Remove possible leak when exception occurred.

nameUtf8 is not released after exception.
In addtion, Fix code going down after ThrowException.

This is the 11th commit message:

frameworks/base: Fix to remove exception in tonegenerator

- Framework reboot happens, if tonegenerator fails to create
  a track in audioflinger.
- The cause for framework reboot is, an exception thrown by
  tonegenerator if fails to init.
- Fix is to remove the exception and delete the tonegenerator
  instance.
CRs-fixed:466491

This is the 12th commit message:

framework: packageinstaller :fix logical error in size calculation

fix logical error in available size calculation.

This is the 13th commit message:

frameworks/base: move the traces file to avoid data loss

If an ANR comes just after the framework reboot, the traces for
the framework reboot will get over-written with the ANR traces.
So, We are missing the traces for the framework reboot which
makes debugging the framework reboot difficult.

This patch will rename this trace file for the framework reboot
once the ActivityManager collects the traces.

Patchset 2: Made commit message easier to read

Signed-off-by: pcarenza <pcarenza@gmail.com>

Conflicts:

	core/jni/Android.mk

Change-Id: Ic91414f5ca8b8ead5b3dd6eebdf9085cbcc9ef03

Conflicts:
	core/jni/Android.mk

Signed-off-by: pcarenza <pcarenza@gmail.com>
Signed-off-by: hany <hany.alsamman@gmail.com>
Fix progress of VolumePanel never refresh

On some occasions when disconnecting a headset it is possible for
the volume slider to enter a state where it is no longer updates.

The cause was that ProgressBar enters a state where a call to
doRefreshProgress no longer updates the progress.

The solution was to make sure mRefreshIsPosted is set to false
when mRefreshProgressRunnable is removed.

Change-Id: I1929e4916a582d09a7ec4911eb4f0052ad7a51ba
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>
aapt: i hate if (true) statements

Change-Id: If0d39f4d942067ae2d4ee4d32490b6e079a5f60d
DocumentsUI: Handle NPE gracefully

Cherry-picked from OmniROM.

http://jira.omnirom.org/browse/OMNI-956

Change-Id: I8d50d71a9c91486dfc9e5da01538c6b5a626f054
Fix DocumentsUI FC

Change-Id: I2bfd4ea83db53ee83683a4754b49b15cc2abeaca
aapt: silence these warnings

to show them, set SHOW_MANIFEST_WARNING

Change-Id: I8fd3617e03ca535df1ae0ebdb3dde3a67eb2737b
WallpaperCropper: Fix crash when set .gif as wallpaper

It returns an equivalent scaled cropBounds as true
crop bounds, then it set the rounded rect by rounding
"out" the true crop rect, this make the rounded crop
rect may out range of the original bitmap, then an error
will happen.

We change to check the rounded crop rect, if it is out
the range of original bitmap, we set the original bitmap
bounds as rounded crop bounds.

CRs-Fixed: 622582

Change-Id: I215ef2a0165adaaadb05c62dee741a8ea6926144
Fix NullPointerException in ListView

There is a NullPointerException in `handleHorizontalFocusWithinListItem()`
because `selectedView.findFocus()` returns null and then there is no null
check when when the assigned variable `currentFocus` is used, although
`View.findFocus()` states that it may return null.

Change-Id: I6897027e9a2a238d9283e6b9f5146198989fcac0
Fix error duplicate exception