[webapi] Integrate 1 upstream test for IndexedDB

Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 1, fail 0, block 0
Merge pull request #1270 from yunxiaoxie/move-up-indexeddb

[webapi] Integrate 1 upstream test for IndexedDB