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// Copyright (c) 2011 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_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
#define CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
namespace prerender {
// Origin indicates what caused the prerender.
// NOTE: New values need to be appended, since they are used in histograms.
enum Origin {
ORIGIN_LINK_REL_PRERENDER = 0,
ORIGIN_OMNIBOX_ORIGINAL = 1,
ORIGIN_GWS_PRERENDER = 2,
ORIGIN_OMNIBOX_CONSERVATIVE = 3,
ORIGIN_OMNIBOX_EXACT = 4,
ORIGIN_MAX
};
// Return a human-readable name for |origin|.
const char* NameFromOrigin(Origin origin);
} // namespace prerender
#endif // CHROME_BROWSER_PRERENDER_PRERENDER_ORIGIN_H_
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