[usecase-embedding][XWALK-2373] Add usecase for onIconAvailable, onReceivedIcon and onCreateWindowRequested

- Failure analysis:The onCreateWindowRequested method could not be triggered when new window was opened.

Impacted tests(approved): new 2, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 1, fail 1, block 0
Merge pull request #1031 from zhuyongyong/yongzhu/usecase-embeddingAPI-v10/Add

[usecase-embedding][XWALK-2373] Add usecases for onCreateWindowRequested, onReceivedIcon and so on