
Add return types to fileapi createObjectURL functions.

R=adeboor
DELTA=3  (3 added, 0 deleted, 0 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=5393


git-svn-id: 818616af560c21f974e3119d89e3310384da871a@2155 b0f006be-c8cd-11de-a2e8-8d36a3108c74

adinardi/google-closure-compiler,adinardi/google-closure-compiler