4bc273d0851c20dc45fc807ce239534bd23b99d1 breaks oss_linux build

Description

When MOZC_USE_MOZC_TESTING is not defined, friend_test.h will try to pull in "testing/production_stub/public/gunit_prod.h", which does not exists in the repo.

Steps to reproduce

bazel build -c opt --copt=-fPIC --config oss_linux --repository_cache=/tmp/cache server:mozc_server gui/tool:mozc_tool

Expected behavior

Build works

Actual behavior

Compiling dictionary/text_dictionary_loader.cc [for tool] failed: (Exit 1): gcc failed: error executing CppCompile command (from target //dictionary:text_dictionary_loader) /usr/bin/gcc -U_FORTIFY_SOURCE -fstack-protector -Wall -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer -g0 -O2 '-D_FORTIFY_SOURCE=1' -DNDEBUG -ffunction-sections ... (remaining 32 arguments skipped)

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
In file included from ./dictionary/text_dictionary_loader.h:40,
                 from dictionary/text_dictionary_loader.cc:34:
./testing/friend_test.h:43:10: fatal error: testing/production_stub/public/gunit_prod.h: No such file or directory
   43 | #include "testing/production_stub/public/gunit_prod.h"  // IWYU pragma: export
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Version or commit-id

4bc273d0851c20dc45fc807ce239534bd23b99d1

Environment

Linux

It seems that MOZC_USE_MOZC_TESTING should be defined for oss_linux. (maybe some others config e.g. mac, but I don't have env to test).

google / mozc