Prevent crash when purging the gradients cache. Bug #5133876
Prevent crash when purging the gradients cache.
Bug #5133876

Change-Id: I3d1fa4e29498044796d725337ac93e6a1e8f0bcb

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