frameworks/base: Handle Out of Memory Exception when creating video thumbnails.

Adds code to handle an out of memory exception when generating the thumbnail
from a recently recorded video clip.

Change-Id: Ifcbe007272ffef85744fca1414ea5eacccd0154c
CRs-Fixed: 277571
Signed-off-by: Shalaj Jain <shalajj@codeaurora.org>
Performance increase in thumbnail handling

Allow for 160*120 thumbnails which is what cameras commonly
generates. The constants for the micro thumbnail were set to other
values, resulting in recalculations of the thumbnais, which
takes time.

This change only affects the maximum size of the temporary image,
when choosing whether to use the EXIF thumbnail or decoding and
downsampling the full image. Without this change, it will choose
an x16 downsampling of the full image over an x2 downsampling of
the EXIF thumbnail, after the change it will prefer the EXIF
thumbnail.

Cf the DCF specifications at http://www.exif.org/dcf.PDF,
"3.3.6. DCF basic thumbnail data structure, (C) Pixel count"

Tested by running DDMS and measuring the time required to create
a thumbnail. This was 220-280 ms prior to change, < 20 ms after.

Change-Id: I59c753493f947e920bad3fde5eeed5d49d509863
Explain why the frameworks/base DateUtilsTest isn't merged with CTS' DateUtilsTest.

Change-Id: Icbdb4e9133a9ae1c1b37f822367e1ac86e9e36cb
update preloaded-classes

Remove some preloaded-classes and fix typo for deleting log messages
as the followings during booting.

W/Zygote  (  163): Class not found for preloading: android.bluetooth.
BluetoothAudioGateway
W/Zygote  (  163): Class not found for preloading: android.bluetooth.
HeadsetBase
W/Zygote  (  163): Class not found for preloading: undroid.content.Ab
stractThreadedSyncAdapter$SyncThread

Change-Id: Id02e0cccaeb150f48e12d67b2d691df828842e4c
core/jni/android/graphics: Cache copy of pre-scaled Bitmaps

Caching some pre-scaled Bitmap objects allows for optimizing later
scaling operations to reduce memory pressure.

CRs-fixed: 451681

Change-Id: Id4341e75911074ff9f565b2d386ccad8f3a223e8
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

Change-Id: I49a7f2fb99dc8b9560e7c17421125356e45a87ac
Fix aliasing violations only and not c++11 mode:

picked code bits from this change:  https://github.com/SaberMod/android_frameworks_base/commit/4ea79c201e537e5490cc459c7438cf2f7f0c53b4
frameworks/base: Fix aliasing violations

Fix violations of strict aliasing rules

Change-Id: Ia83db6a0be18f52e8f274c581c3b42f031b39247
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>