Move StringToLowerASCII to base namespace

net/server/http_server_unittest.cc

Index: net/server/http_server_unittest.cc
diff --git a/net/server/http_server_unittest.cc b/net/server/http_server_unittest.cc
index 207c454acfbc3a8b09eb97eb4d8a3cfba89e5862..467bde433256cddf5671c0e7d79ac76df5a4e718 100644
--- a/net/server/http_server_unittest.cc
+++ b/net/server/http_server_unittest.cc
@@ -262,7 +262,7 @@ TEST_F(HttpServerTest, RequestWithHeaders) {
   ASSERT_EQ("", GetRequest(0).data);
 
   for (size_t i = 0; i < arraysize(kHeaders); ++i) {
-    std::string field = StringToLowerASCII(std::string(kHeaders[i][0]));
+    std::string field = base::StringToLowerASCII(std::string(kHeaders[i][0]));
     std::string value = kHeaders[i][2];
     ASSERT_EQ(1u, GetRequest(0).headers.count(field)) << field;
     ASSERT_EQ(value, GetRequest(0).headers[field]) << kHeaders[i][0];
@@ -290,7 +290,7 @@ TEST_F(HttpServerTest, RequestWithDuplicateHeaders) {
   ASSERT_EQ("", GetRequest(0).data);
 
   for (size_t i = 0; i < arraysize(kHeaders); ++i) {
-    std::string field = StringToLowerASCII(std::string(kHeaders[i][0]));
+    std::string field = base::StringToLowerASCII(std::string(kHeaders[i][0]));
     std::string value = (field == "duplicateheader") ? "2,4" : kHeaders[i][2];
     ASSERT_EQ(1u, GetRequest(0).headers.count(field)) << field;
     ASSERT_EQ(value, GetRequest(0).headers[field]) << kHeaders[i][0];