liyuqian 4537391c78 Use drawImage for picture layer cache (flutter/engine#5315) ...

Fixes
1. https://github.com/flutter/flutter/issues/12148
2. most part of https://github.com/flutter/flutter/issues/17731 except some tiny AA diffs.

2018-05-23 16:53:20 -07:00

..

src/flutter

Use drawImage for picture layer cache (flutter/engine#5315)

2018-05-23 16:53:20 -07:00