1 // Copyright 2015 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 #include "components/version_ui/version_handler_helper.h"
6 
7 #include <utility>
8 #include <vector>
9 
10 #include "base/base_switches.h"
11 #include "base/metrics/field_trial.h"
12 #include "base/strings/string_piece.h"
13 #include "base/strings/string_util.h"
14 #include "base/values.h"
15 #include "components/variations/active_field_trials.h"
16 #include "components/variations/net/variations_command_line.h"
17 
18 namespace version_ui {
19 
GetVariationsList()20 std::unique_ptr<base::Value> GetVariationsList() {
21   std::vector<std::string> variations;
22 #if !defined(NDEBUG)
23   base::FieldTrial::ActiveGroups active_groups;
24   base::FieldTrialList::GetActiveFieldTrialGroups(&active_groups);
25 
26   const unsigned char kNonBreakingHyphenUTF8[] = {0xE2, 0x80, 0x91, '\0'};
27   const std::string kNonBreakingHyphenUTF8String(
28       reinterpret_cast<const char*>(kNonBreakingHyphenUTF8));
29   for (const auto& group : active_groups) {
30     std::string line = group.trial_name + ":" + group.group_name;
31     base::ReplaceChars(line, "-", kNonBreakingHyphenUTF8String, &line);
32     variations.push_back(line);
33   }
34 #else
35   // In release mode, display the hashes only.
36   variations::GetFieldTrialActiveGroupIdsAsStrings(base::StringPiece(),
37                                                    &variations);
38 #endif
39 
40   std::unique_ptr<base::ListValue> variations_list(new base::ListValue);
41   for (std::vector<std::string>::const_iterator it = variations.begin();
42        it != variations.end(); ++it) {
43     variations_list->AppendString(*it);
44   }
45 
46   return std::move(variations_list);
47 }
48 
GetVariationsCommandLineAsValue()49 base::Value GetVariationsCommandLineAsValue() {
50   return base::Value(variations::GetVariationsCommandLine());
51 }
52 
53 }  // namespace version_ui
54