tree ed544e0446f6f9e6e6402218c0ac4360120dce7b
parent 12e48a85fbdcaf04cb67234244b62ff554b13889
author Paul Crowley <paulcrowley@google.com> 1586140471 -0700
committer Paul Crowley <paulcrowley@google.com> 1623795644 -0700

No using inside header files

I thought it was OK to use "using" in a header file so long as it was
inside a "namespace" block, but it just imports symbols from one
namespace into another, so things that shouldn't work do.

Test: Treehugger
Change-Id: I4d43d35339636af7e95761cada7120b4db638c01