| // Copyright (c) 2012 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_CHROME_BROWSER_FIELD_TRIALS_H_ |
| #define CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/command_line.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/time.h" |
| |
| class ChromeBrowserFieldTrials { |
| public: |
| explicit ChromeBrowserFieldTrials(const CommandLine& command_line); |
| ~ChromeBrowserFieldTrials(); |
| |
| // Add an invocation of your field trial init function to this method. |
| // |install_time| is the time this browser was installed (or the last time |
| // prefs was reset). |install_time| is used by trials that are only created |
| // for new installs of the browser. |
| void SetupFieldTrials(const base::Time& install_time); |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(BrowserMainTest, |
| WarmConnectionFieldTrial_WarmestSocket); |
| FRIEND_TEST_ALL_PREFIXES(BrowserMainTest, WarmConnectionFieldTrial_Random); |
| FRIEND_TEST_ALL_PREFIXES(BrowserMainTest, WarmConnectionFieldTrial_Invalid); |
| |
| // A/B test for spdy when --use-spdy not set. |
| void SpdyFieldTrial(); |
| |
| // A/B test for warmest socket vs. most recently used socket. |
| void WarmConnectionFieldTrial(); |
| |
| // Field trial to see what disabling DNS pre-resolution does to |
| // latency of page loads. |
| void PredictorFieldTrial(); |
| |
| // A field trial to see what effects launching Chrome automatically on |
| // computer startup has on retention and usage of Chrome. |
| void AutoLaunchChromeFieldTrial(); |
| |
| // A collection of one-time-randomized and session-randomized field trials |
| // intended to test the uniformity and correctness of the field trial control, |
| // bucketing and reporting systems. |
| void SetupUniformityFieldTrials(const base::Time& install_date); |
| |
| // Disables the new tab field trial if not running in desktop mode. |
| void DisableNewTabFieldTrialIfNecesssary(); |
| |
| // Sets up the InfiniteCache field trial. |
| void SetUpInfiniteCacheFieldTrial(); |
| |
| // Sets up field trials for doing Cache Sensitivity Analysis. |
| void SetUpCacheSensitivityAnalysisFieldTrial(); |
| |
| // A field trial to determine the impact of using non-blocking reads for |
| // TCP sockets on Windows instead of overlapped I/O. |
| void WindowsOverlappedTCPReadsFieldTrial(); |
| |
| // Instantiates dynamic trials by querying their state, to ensure they get |
| // reported as used. |
| void InstantiateDynamicTrials(); |
| |
| const CommandLine& parsed_command_line_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ChromeBrowserFieldTrials); |
| }; |
| |
| #endif // CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ |