shill: Top-level unit tests: Switch pointer/ref spacing

Switch to Chrome style spacing.

BUG=chromium:501026
TEST=Unit tests

Change-Id: I86c072b89281e0de18928b47860b99d779af061a
Reviewed-on: https://chromium-review.googlesource.com/278037
Reviewed-by: Rebecca Silberstein <silberst@chromium.org>
Commit-Queue: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
diff --git a/http_url_unittest.cc b/http_url_unittest.cc
index 9adf4da..2fa5caf 100644
--- a/http_url_unittest.cc
+++ b/http_url_unittest.cc
@@ -12,16 +12,16 @@
 namespace shill {
 
 struct StringAndResult {
-  StringAndResult(const string &in_url_string,
+  StringAndResult(const string& in_url_string,
                   bool in_result)
       : url_string(in_url_string),
         result(in_result) {}
-  StringAndResult(const string &in_url_string,
+  StringAndResult(const string& in_url_string,
                   bool in_result,
                   HTTPURL::Protocol in_protocol,
-                  const string &in_host,
+                  const string& in_host,
                   int in_port,
-                  const string &in_path)
+                  const string& in_path)
       : url_string(in_url_string),
         result(in_result),
         protocol(in_protocol),