Merge "Work around bug in offload driver" into mnc-dev

                if (exitPending()) {

                    break;

                }

                bool released = false;

                // The following works around a bug in the offload driver. Ideally we would release

                // the wake lock every time, but that causes the last offload buffer(s) to be

                // dropped while the device is on battery, so we need to hold a wake lock during

                // the drain phase.

                if (mBytesRemaining && !(mDrainSequence & 1)) {

                    releaseWakeLock_l();

                    released = true;

                }

                mWakeLockUids.clear();

                mActiveTracksGeneration++;

                ALOGV("wait async completion");

                mWaitWorkCV.wait(mLock);

                ALOGV("async completion/wake");

                if (released) {

                    acquireWakeLock_l();

                }

                standbyTime = systemTime() + standbyDelay;

                sleepTime = 0;