Factor out HTTP status code and reason phrase in Blob and Stream infrastructure into net/.

TEST=
out/Debug/content_unittests --gtest_filter='*Stream*'
out/Debug/content_unittests --gtest_filter='*Blob*'
out/Debug/net_unittests

Review URL: https://chromiumcodereview.appspot.com/16120005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204797 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 48 insertions, 0 deletions

diff --git a/net/http/http_status_code.cc b/net/http/http_status_code.cc
new file mode 100644
index 0000000..462202b
--- /dev/null
+++ b/net/http/http_status_code.cc
@@ -0,0 +1,36 @@
+// Copyright 2013 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 "net/http/http_status_code.h"
+
+#include "base/logging.h"
+
+namespace net {
+
+const char* GetHttpReasonPhrase(HttpStatusCode code) {
+  switch (code) {
+    case HTTP_CONTINUE:
+      return "Continue";
+    case HTTP_OK:
+      return "OK";
+    case HTTP_PARTIAL_CONTENT:
+      return "Partial Content";
+    case HTTP_FORBIDDEN:
+      return "Forbidden";
+    case HTTP_NOT_FOUND:
+      return "Not Found";
+    case HTTP_METHOD_NOT_ALLOWED:
+      return "Method Not Allowed";
+    case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE:
+      return "Range Not Satisfiable";
+    case HTTP_INTERNAL_SERVER_ERROR:
+      return "Internal Server Error";
+    default:
+      NOTREACHED();
+  }
+
+  return "";
+}
+
+}  // namespace net
diff --git a/net/http/http_status_code.h b/net/http/http_status_code.h
index 0ae47d6..8780c71 100644
--- a/net/http/http_status_code.h
+++ b/net/http/http_status_code.h
@@ -5,6 +5,8 @@
 #ifndef NET_HTTP_HTTP_STATUS_CODE_H_
 #define NET_HTTP_HTTP_STATUS_CODE_H_
 
+#include "net/base/net_export.h"
+
 namespace net {
 
 // HTTP status codes.
@@ -62,6 +64,16 @@ enum HttpStatusCode {
   HTTP_VERSION_NOT_SUPPORTED = 505,
 };
 
+// Returns the corresponding HTTP status description to use in the Reason-Phrase
+// field in an HTTP response for given |code|. It's based on the IANA HTTP
+// Status Code Registry.
+// http://www.iana.org/assignments/http-status-codes/http-status-codes.xml
+//
+// This function doesn't cover all codes defined above. It returns an empty
+// string (or crash in debug build) for status codes which are not yet covered
+// or just invalid. Please extend it when needed.
+NET_EXPORT const char* GetHttpReasonPhrase(HttpStatusCode code);
+
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STATUS_CODE_H_