Add <link rel=next> support to prerender.

chrome/common/prerender_types.h

Index: chrome/common/prerender_types.h
diff --git a/chrome/common/prerender_types.h b/chrome/common/prerender_types.h
new file mode 100644
index 0000000000000000000000000000000000000000..f1efb3621f94cdae96164ab27ec08ddd6839ecbb
--- /dev/null
+++ b/chrome/common/prerender_types.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2014 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.
+
+#ifndef CHROME_COMMON_PRERENDER_TYPES_H_
+#define CHROME_COMMON_PRERENDER_TYPES_H_
+
+namespace prerender {
+
+// PrerenderRelType is a bitfield since multiple rel attributes can be set
+// on the same link. Must be the same as blink::WebPrerenderRelType.
+enum PrerenderRelType {
+  PrerenderRelTypePrerender = 0x1,
+  PrerenderRelTypeNext = 0x2,
+};
+
+}  // namespace prerender
+
+#endif  // CHROME_COMMON_PRERENDER_TYPES_H_