Fix useragenttestutil so that it properly resets the IPAD and IPHONE platforms on reinitializeUserAgent.
Fix useragenttestutil so that it properly resets the
IPAD and IPHONE platforms on reinitializeUserAgent.

Submit Queue Results:
https://test.corp.google.com/ui#id=OCL:64182841:BASE:64196344:1396429392450:e14f7a5e
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=64215695

jhiswin/idiil-closure-library,jhiswin/idiil-closure-library,jhiswin/idiil-closure-library,jhiswin/idiil-closure-library