Revert "Remove the limitation that zoom can't go beyond overview scale."
Revert "Remove the limitation that zoom can't go beyond overview scale."

This reverts commit f1b391a1e3fc51f90f3afaae6623540cab326c8d.

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