[webapi]Change ref test tct-canvas-html5-tests

Impacted tests(approved):new 0,update 1,delete 0
Unit test platform:[Android]
Unit test result summary:pass 0,fail 1,block 0
Merge pull request #967 from chenxix/chenxi/misc-uiautomation/update-canvas-third

[webapi]Change ref test tct-canvas-html5-tests