Clang-format before updating storage proxy

These files were previously not clang-format clean. I am submitting the
clang-format cleanup in its own CL to avoid mixing up the code I'm
adding/adjusting with old code which needed to be reformatted.

Bug: 124277696
Test: m
Change-Id: I8a57ca97925a16bee10b15d2013a5dcf87b0ed15