ART Extension

Vendor extension hooks.

Change-Id: I2b33c2294415bc909084be5a33ddedd91826559a
ART: minor bugfix

1. reset reference counters during initialization
2. check element existence when removing from GrowableArray

Change-Id: I3a48da94346ecd407febb91ffe61a0ca7da9e8f2
setting RLIMIT to INFINITY.

This is to generate coredumps for processes spawned by zygote

Change-Id: Iecc1eb7784373ffaf3ebfdc60d32d2ae0beb3235
more ART Extension

Vendor extension hooks.

Change-Id: I9f03153bba698e82d1a1e992baf2bc1c48a5d059
art: Update QC-PERF board flag to TARGET_HAVE_QC_PERF

 * Some targets will set QCOM_HARDWARE but won't have these libs.

Change-Id: I84292c190c120b646f5017d4801e7893fed902ff