Fix possible leak in bitmap decoding.
Fix possible leak in bitmap decoding.

In one particular error case, we might exit the function without
destroying the bitmap.

Bug: 6467873 (tangentially related)
Change-Id: I3a213cc0a53023d9d0d2a080aed15774f4c4c10c

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