Make net::HttpRequestHeaders::AddHeadersFromString split on NL

net/http/http_request_headers_unittest.cc

Index: net/http/http_request_headers_unittest.cc
diff --git a/net/http/http_request_headers_unittest.cc b/net/http/http_request_headers_unittest.cc
index 6a09e4631e75b620838dc273e65f8cd4bbc5a6f5..70fa828ca4f33e24024be746b97cd0fb4bd183c1 100644
--- a/net/http/http_request_headers_unittest.cc
+++ b/net/http/http_request_headers_unittest.cc
@@ -142,6 +142,19 @@ TEST(HttpRequestHeaders, AddHeaderFromStringWithWhitespaceValue) {
   EXPECT_EQ("Foo:\r\n\r\n", headers.ToString());
 }
 
+TEST(HttpRequestHeaders, AddHeadersFromStringEmbeddedNewline) {
+  HttpRequestHeaders headers;
+  headers.AddHeadersFromString(
+      "Cache-Control: max-age=0\r\n"
+      "X-Powered-By: sugar\nOrigin: http://www.google.com");
+  EXPECT_EQ(
+      "Cache-Control: max-age=0\r\n"
+      "X-Powered-By: sugar\r\n"
+      "Origin: http://www.google.com\r\n"
+      "\r\n",
+      headers.ToString());
+}
+
 TEST(HttpRequestHeaders, MergeFrom) {
   HttpRequestHeaders headers;
   headers.SetHeader("A", "A");