If pixel memory was just allocated by Java, tell our decoders not to write 0s, since the memory was initialized to 0. Likewise, when drawing to a bitmap with memory just allocated by Java, do not erase to 0. Depends on a change to external/skia to add the new option on image decoders: https://googleplex-android-review.git.corp.google.com/362663 BUG:10016979 Change-Id: I9a3dc969870f8516e7d8495fe96d0a6b8225eda2