[usecase-webapi] Fix style issue and add icon in Viewport

 Impacted TCs num: New 0, Update 4, Delete: 0
 Unit test platform: Android
 Unit test result: Pass 4, Fail 0, Block 0
[embedding] Delete one unnecessary test case

Impacted tests(approved): new 0, update 0, delete 1
Unit test platform: [Android]
Unit test result summary: pass 83, fail 18, block 4
Merge pull request #826 from zhuyongyong/yongzhu/embedding-tests/delete

[embedding] Delete one unnecessary test case
Merge pull request #824 from Honry/Honry/usecase-fix-style-issue

[usecase-webapi] Fix style issue and add icon in Viewport
[sample] Remove useless resource files

 Impacted test case: New 0, Update 3, Delete 0
 Unit test platform: Tizen ivi
 Unit test result: Pass 3, Fail 0, Block 0
Merge pull request #827 from Honry/Honry/sample-icon-config

Remove useless resource files and add icon in Viewport