Remove using namespace in net/quic/quic_stream_sequencer.h

net/url_request/url_request_unittest.cc

Index: net/url_request/url_request_unittest.cc
diff --git a/net/url_request/url_request_unittest.cc b/net/url_request/url_request_unittest.cc
index 9892a692d1f1150229f602453dd2e03998697172..7708c57b21298549f713535175094dcf7d1e4ae5 100644
--- a/net/url_request/url_request_unittest.cc
+++ b/net/url_request/url_request_unittest.cc
@@ -7400,7 +7400,7 @@ TEST_F(HTTPSRequestTest, ResumeTest) {
 // AssertTwoDistinctSessionsInserted checks that |session_info|, which must be
 // the result of fetching "ssl-session-cache" from the test server, indicates
 // that exactly two different sessions were inserted, with no lookups etc.
-static void AssertTwoDistinctSessionsInserted(const string& session_info) {
+static void AssertTwoDistinctSessionsInserted(const std::string& session_info) {
   std::vector<std::string> lines;
   base::SplitString(session_info, '\n', &lines);
   ASSERT_EQ(3u, lines.size()) << session_info;