Don't change task type for launcher activities.
Don't change task type for launcher activities.

When the launcher starts a new activity don't let it change the task
type. This would cause the stacks to get confused.

Fixes bug 9323103.

Change-Id: Ie1d9c3bf85461827c7255e68003f11ed5a38f63b

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base