IndexOutOfBoundsException observed in ProcessStats

Sometime, IndexOutOfBoundsException is observed in ProcessStats
while allocating longs array. This could be due to synchronization.
This fix will return if array index is >= size.

Change-Id: Icd81d84607ca28c5f1b0f9a05e255037252239fd
CRs-Fixed: 638977
Tunning max allowed background services

The serialize running of background services feature
delay some services startup when system bootup, and
lead some abnormal behaivor at the early of system startup.
Tunning will be disabled after system complete bootup.

Change-Id: I834607d9156253bee13848586a8136e24760fdf4
[Asset Manager] Fix memory leakage bug

Symptom: memory leakage
Root Cause: new SortedVector but not free it in native cpp
Solution: free the SortedVector
Project: AOSP
Note:

Change-Id: Iab5a7f2e8d8509631301e7231427927d4797c856
QuickSettings : Register/unregister cast tile one time

Don't do these operations every time the parent is visible/invisible,
it causes jank.

Repro:

Turn on wifi on a network w/ chromecast
Swipe down quick settings panel really fast

Change-Id: I3dfcd3610abe96e1bfdab06ef3b876ccf5140ceb
DialogFragement: Add null pointer check for mDialog for protection

DialogFragement can be dissmissed just after the Dialog is
established. This will cause NullPointerException.

Add null pointer check for mDialog for protection

CRs-fixed: 549689

Change-Id: If57f81d03a8ec2906598363b681ea38806fb2a90
ChooseTypeAndAccountActivity: Fix the Null pointer Exception of monkey test

ChooseTypeAndAccountActivity crashed during monkey test, due to Null
pointer exception occurred.

To fix this issue, Add Null pointer check before we use it.

CRs-Fixed: 478250

Change-Id: Iae3e331edfda238ecb0c6d5d32b15329b1dfee0b