Add the Service-Worker-Allowed header to the HTTP header constants for Java/Go.
Add the Service-Worker-Allowed header to the HTTP header constants for Java/Go.

(Note: C++ constants are added in []
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=115700477

typetools/guava,jakubmalek/guava,mosoft521/guava,rgoldberg/guava,Xaerxess/guava,tli2/guava,rgoldberg/guava,google/guava,Xaerxess/guava,mosoft521/guava,mosoft521/guava,google/guava,jakubmalek/guava,berndhopp/guava,EdwardLee03/guava,xasx/guava,typetools/guava,DavesMan/guava,google/guava,EdwardLee03/guava,tli2/guava,xasx/guava,DavesMan/guava,berndhopp/guava