1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
6 #define CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
10 // Origin indicates what caused the prerender.
11 // NOTE: New values need to be appended, since they are used in histograms.
13 // Obsolete: ORIGIN_LINK_REL_PRERENDER = 0,
14 // Obsolete: ORIGIN_OMNIBOX_ORIGINAL = 1,
15 ORIGIN_GWS_PRERENDER = 2,
16 // Obsolete: ORIGIN_OMNIBOX_CONSERVATIVE = 3,
17 // Obsolete: ORIGIN_OMNIBOX_EXACT = 4,
20 ORIGIN_LINK_REL_PRERENDER_SAMEDOMAIN = 7,
21 ORIGIN_LINK_REL_PRERENDER_CROSSDOMAIN = 8,
22 ORIGIN_LOCAL_PREDICTOR = 9,
26 // Return a human-readable name for |origin|.
27 const char* NameFromOrigin(Origin origin);
29 } // namespace prerender
31 #endif // CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_