Avoid memcpy. BUG=176 TEST=NONE Review URL: https://webrtc-codereview.appspot.com/1081004
Avoid memcpy.
BUG=176
TEST=NONE
Review URL: https://webrtc-codereview.appspot.com/1081004
flykickbird/libyuv,flykickbird/libyuv,flykickbird/libyuv