- add sources.
[platform/framework/web/crosswalk.git] / src / chrome / browser / prerender / prerender_origin.h
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.
4
5 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
6 #define CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
7
8 namespace prerender {
9
10 // Origin indicates what caused the prerender.
11 // NOTE: New values need to be appended, since they are used in histograms.
12 enum Origin {
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,
18   ORIGIN_OMNIBOX = 5,
19   ORIGIN_NONE = 6,
20   ORIGIN_LINK_REL_PRERENDER_SAMEDOMAIN = 7,
21   ORIGIN_LINK_REL_PRERENDER_CROSSDOMAIN = 8,
22   ORIGIN_LOCAL_PREDICTOR = 9,
23   ORIGIN_MAX,
24 };
25
26 // Return a human-readable name for |origin|.
27 const char* NameFromOrigin(Origin origin);
28
29 }  // namespace prerender
30
31 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_