Add support for 308 permanent redirects.

net/url_request/url_request_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shlobj.h>
 #endif
@@ skipping 6000 matching lines @@
 TEST_F(URLRequestTestHTTP, Redirect307Tests) {
   ASSERT_TRUE(test_server_.Start());
 
   const GURL url = test_server_.GetURL("files/redirect307-to-echo");
 
   HTTPRedirectMethodTest(url, "POST", "POST", true);
   HTTPRedirectMethodTest(url, "PUT", "PUT", true);
   HTTPRedirectMethodTest(url, "HEAD", "HEAD", false);
 }
 
+TEST_F(URLRequestTestHTTP, Redirect308Tests) {
+  ASSERT_TRUE(test_server_.Start());
+
+  const GURL url = test_server_.GetURL("files/redirect308-to-echo");
+
+  HTTPRedirectMethodTest(url, "POST", "POST", true);
+  HTTPRedirectMethodTest(url, "PUT", "PUT", true);
+  HTTPRedirectMethodTest(url, "HEAD", "HEAD", false);
+}
+
+// Make sure that 308 responses without bodies are not treated as redirects.
+// Certain legacy apis that pre-date the response code expect this behavior
+// (Like Google Drive).
+TEST_F(URLRequestTestHTTP, NoRedirectOn308WithoutLocationHeader) {
+  ASSERT_TRUE(test_server_.Start());
+
+  TestDelegate d;
+  const GURL url = test_server_.GetURL("files/308-without-location-header");
+
+  URLRequest request(url, DEFAULT_PRIORITY, &d, &default_context_);
+
+  request.Start();
+  base::RunLoop().Run();
+  EXPECT_EQ(URLRequestStatus::SUCCESS, request.status().status());
+  EXPECT_EQ(OK, request.status().error());
+  EXPECT_EQ(0, d.received_redirect_count());
+  EXPECT_EQ(308, request.response_headers()->response_code());
+  EXPECT_EQ("This is not a redirect.", d.data_received());
+}
+
 TEST_F(URLRequestTestHTTP, Redirect302PreserveReferenceFragment) {
   ASSERT_TRUE(test_server_.Start());
 
   GURL original_url(test_server_.GetURL("files/redirect302-to-echo#fragment"));
   GURL expected_url(test_server_.GetURL("echo#fragment"));
 
   TestDelegate d;
   {
     URLRequest r(original_url, DEFAULT_PRIORITY, &d, &default_context_);
 
@@ skipping 1933 matching lines @@
 
     EXPECT_FALSE(r.is_pending());
     EXPECT_EQ(1, d->response_started_count());
     EXPECT_FALSE(d->received_data_before_response());
     EXPECT_EQ(d->bytes_received(), static_cast<int>(file_size));
   }
 }
 #endif  // !defined(DISABLE_FTP_SUPPORT)
 
 }  // namespace net