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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ | 5 #ifndef CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ |
6 #define CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ | 6 #define CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
10 #include "base/gtest_prod_util.h" | |
11 #include "base/time.h" | 10 #include "base/time.h" |
12 | 11 |
13 class PrefService; | 12 class PrefService; |
14 | 13 |
15 class ChromeBrowserFieldTrials { | 14 class ChromeBrowserFieldTrials { |
16 public: | 15 public: |
17 explicit ChromeBrowserFieldTrials(const CommandLine& command_line); | 16 explicit ChromeBrowserFieldTrials(const CommandLine& command_line); |
18 ~ChromeBrowserFieldTrials(); | 17 ~ChromeBrowserFieldTrials(); |
19 | 18 |
20 // Called by the browser main sequence to set up Field Trials for this client. | 19 // Called by the browser main sequence to set up Field Trials for this client. |
21 // |local_state| is used to extract properties like install time. | 20 // |local_state| is used to extract properties like install time. |
22 void SetupFieldTrials(PrefService* local_state); | 21 void SetupFieldTrials(PrefService* local_state); |
23 | 22 |
24 private: | 23 private: |
25 FRIEND_TEST_ALL_PREFIXES(BrowserMainTest, | |
26 WarmConnectionFieldTrial_WarmestSocket); | |
27 FRIEND_TEST_ALL_PREFIXES(BrowserMainTest, WarmConnectionFieldTrial_Random); | |
28 FRIEND_TEST_ALL_PREFIXES(BrowserMainTest, WarmConnectionFieldTrial_Invalid); | |
29 | |
30 // Sets up common desktop-only field trials. | 24 // Sets up common desktop-only field trials. |
31 // Add an invocation of your field trial init function to this method, or to | 25 // Add an invocation of your field trial init function to this method, or to |
32 // SetupFieldTrials if it is for all platforms. | 26 // SetupFieldTrials if it is for all platforms. |
33 // |local_state| is needed by some other methods called from within this one. | 27 // |local_state| is needed by some other methods called from within this one. |
34 void SetupDesktopFieldTrials(PrefService* local_state); | 28 void SetupDesktopFieldTrials(PrefService* local_state); |
35 | 29 |
36 // This is not quite a field trial initialization, but it's an initialization | 30 // This is not quite a field trial initialization, but it's an initialization |
37 // that depends on a field trial, so why not? :-) | 31 // that depends on a field trial, so why not? :-) |
38 // |local_state| is needed to reset a local pref based on the chosen group. | 32 // |local_state| is needed to reset a local pref based on the chosen group. |
39 void SetupAppLauncherFieldTrial(PrefService* local_state); | 33 void SetupAppLauncherFieldTrial(PrefService* local_state); |
40 | 34 |
41 // A/B test for spdy when --use-spdy not set. | 35 // A/B test for spdy when --use-spdy not set. |
42 void SpdyFieldTrial(); | 36 void SpdyFieldTrial(); |
43 | 37 |
44 // A/B test for warmest socket vs. most recently used socket. | |
45 void WarmConnectionFieldTrial(); | |
46 | |
47 // Field trial to see what disabling DNS pre-resolution does to | 38 // Field trial to see what disabling DNS pre-resolution does to |
48 // latency of page loads. | 39 // latency of page loads. |
49 void PredictorFieldTrial(); | 40 void PredictorFieldTrial(); |
50 | 41 |
51 // A field trial to see what effects launching Chrome automatically on | 42 // A field trial to see what effects launching Chrome automatically on |
52 // computer startup has on retention and usage of Chrome. | 43 // computer startup has on retention and usage of Chrome. |
53 void AutoLaunchChromeFieldTrial(); | 44 void AutoLaunchChromeFieldTrial(); |
54 | 45 |
55 // A collection of one-time-randomized and session-randomized field trials | 46 // A collection of one-time-randomized and session-randomized field trials |
56 // intended to test the uniformity and correctness of the field trial control, | 47 // intended to test the uniformity and correctness of the field trial control, |
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77 // Instantiates dynamic trials by querying their state, to ensure they get | 68 // Instantiates dynamic trials by querying their state, to ensure they get |
78 // reported as used. | 69 // reported as used. |
79 void InstantiateDynamicTrials(); | 70 void InstantiateDynamicTrials(); |
80 | 71 |
81 const CommandLine& parsed_command_line_; | 72 const CommandLine& parsed_command_line_; |
82 | 73 |
83 DISALLOW_COPY_AND_ASSIGN(ChromeBrowserFieldTrials); | 74 DISALLOW_COPY_AND_ASSIGN(ChromeBrowserFieldTrials); |
84 }; | 75 }; |
85 | 76 |
86 #endif // CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ | 77 #endif // CHROME_BROWSER_CHROME_BROWSER_FIELD_TRIALS_H_ |
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