| // Copyright 2022 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_PRELOADING_PRERENDER_PRERENDER_UTILS_H_ |
| #define CHROME_BROWSER_PRELOADING_PRERENDER_PRERENDER_UTILS_H_ |
| |
| // This file is used to manage some static functions and constants for |
| // prerender2. Some typical cases can be: |
| // * Indicates whether a prerender2-related feature is enabled. |
| // * Stores the constants to avoid hardcoded strings. |
| namespace prerender_utils { |
| |
| // LINT.IfChange(PreloadingEmbedderTriggerType) |
| extern const char kPrewarmDefaultSearchEngineMetricSuffix[]; |
| extern const char kDefaultSearchEngineMetricSuffix[]; |
| extern const char kDirectUrlInputMetricSuffix[]; |
| extern const char kBookmarkBarMetricSuffix[]; |
| extern const char kNewTabPageMetricSuffix[]; |
| extern const char kLinkPreviewMetricsSuffix[]; |
| // LINT.ThenChange(//tools/metrics/histograms/metadata/navigation/histograms.xml:PagePreloadingTriggerType, //tools/metrics/histograms/metadata/page/histograms.xml:PagePreloadingTriggerType) |
| |
| } // namespace prerender_utils |
| |
| #endif // CHROME_BROWSER_PRELOADING_PRERENDER_PRERENDER_UTILS_H_ |
