Rename "libchromeos" into "libbrillo"

Renamed libchromeos[-.*] libraries into libbrillo-...

BUG: 24872993
Change-Id: Ibab1623b6a08a55cae3662e941d0d6644ff14df4
diff --git a/libbrillo-test.pc.in b/libbrillo-test.pc.in
new file mode 100644
index 0000000..4fece7c
--- /dev/null
+++ b/libbrillo-test.pc.in
@@ -0,0 +1,8 @@
+bslot=@BSLOT@
+
+Name: libbrillo-test
+Description: brillo test library
+Version: ${bslot}
+# Because libbrillo-test is static, we have to depend directly on everything.
+Requires: @PRIVATE_PC@
+Libs: -lbrillo-test-${bslot}