Prevent possible NPE in android.gesture.Learner
Prevent possible NPE in android.gesture.Learner

Change-Id: If9b0ac9a05b6736719d84c6b58be73e3f7771f07

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