[#436] 全屏播放视频可截屏对前端暴露

Author: chenjinfa-oppo

core/runtime/android/widgets/src/main/java/org/hapjs/widgets/video/Video.java

@@ -59,6 +59,7 @@
                 Video.METHOD_PAUSE,
                 Video.METHOD_SET_CURRENT_TIME,
                 Video.METHOD_EXIT_FULLSCREEN,
+                Video.METHOD_SNAP_SHOT,
                 Component.METHOD_REQUEST_FULLSCREEN,
                 Component.METHOD_GET_BOUNDING_CLIENT_RECT,
                 Component.METHOD_FOCUS