Record errors that trigger a data reduction proxy bypass

net/http/http_response_headers_unittest.cc

Index: net/http/http_response_headers_unittest.cc
diff --git a/net/http/http_response_headers_unittest.cc b/net/http/http_response_headers_unittest.cc
index c9c8c467eaf26bd19942a13a089a58cf03179286..b097a184a1b8056be18abbcd9c8d8a68dea0e10f 100644
--- a/net/http/http_response_headers_unittest.cc
+++ b/net/http/http_response_headers_unittest.cc
@@ -2245,6 +2245,17 @@ TEST(HttpResponseHeadersTest, GetDataReductionProxyBypassEventType) {
       "Chrome-Proxy: bypass=1799\n",
       net::ProxyService::SHORT_BYPASS,
     },
+    { "HTTP/1.1 502 Bad Gateway\n"
+      "Chrome-Proxy: bypass=1799\n",
+      net::ProxyService::SHORT_BYPASS,
+    },
+    { "HTTP/1.1 414 Request-URI Too Long\n",
+      net::ProxyService::PROXY_4XX_BYPASS,
+    },
+    { "HTTP/1.1 414 Request-URI Too Long\n"
+      "Via: 1.1 Chrome-Compression-Proxy\n",
+      net::ProxyService::BYPASS_EVENT_TYPE_MAX,
+    }
   };
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
     std::string headers(tests[i].headers);