Pulling user experiment code from BrowserDistribution to a new class.

chrome/installer/util/chrome_frame_operations.cc

 // 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.
 
 #include "chrome/installer/util/chrome_frame_operations.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "chrome/installer/util/channel_info.h"
 #include "chrome/installer/util/helper.h"
 #include "chrome/installer/util/master_preferences.h"
 #include "chrome/installer/util/master_preferences_constants.h"
 #include "chrome/installer/util/util_constants.h"
 
 namespace installer {
 
 // Remove ready-mode if not multi-install.
 void ChromeFrameOperations::NormalizeOptions(
-    std::set<std::wstring>* options) const {
-  std::set<std::wstring>::iterator ready_mode(options->find(kOptionReadyMode));
+    std::set<string16>* options) const {
+  std::set<string16>::iterator ready_mode(options->find(kOptionReadyMode));
   if (ready_mode != options->end() &&
       options->find(kOptionMultiInstall) == options->end()) {
     LOG(WARNING) << "--ready-mode option does not apply when --multi-install "
                     "is not also specified; ignoring.";
     options->erase(ready_mode);
   }
 }
 
-void ChromeFrameOperations::ReadOptions(
-    const MasterPreferences& prefs,
-    std::set<std::wstring>* options) const {
+void ChromeFrameOperations::ReadOptions(const MasterPreferences& prefs,
+                                        std::set<string16>* options) const {
   DCHECK(options);
 
   static const struct PrefToOption {
     const char* pref_name;
     const wchar_t* option_name;
   } map[] = {
     { master_preferences::kChromeFrameReadyMode, kOptionReadyMode },
     { master_preferences::kMultiInstall, kOptionMultiInstall }
   };
 
   bool pref_value;
 
   for (const PrefToOption* scan = &map[0], *end = &map[arraysize(map)];
        scan != end; ++scan) {
     if (prefs.GetBool(scan->pref_name, &pref_value) && pref_value)
       options->insert(scan->option_name);
   }
 
   NormalizeOptions(options);
 }
 
-void ChromeFrameOperations::ReadOptions(
-    const CommandLine& uninstall_command,
-    std::set<std::wstring>* options) const {
+void ChromeFrameOperations::ReadOptions(const CommandLine& uninstall_command,
+                                        std::set<string16>* options) const {
   DCHECK(options);
 
   static const struct FlagToOption {
     const char* flag_name;
     const wchar_t* option_name;
   } map[] = {
     { switches::kChromeFrameReadyMode, kOptionReadyMode },
     { switches::kMultiInstall, kOptionMultiInstall }
   };
 
   for (const FlagToOption* scan = &map[0], *end = &map[arraysize(map)];
        scan != end; ++scan) {
     if (uninstall_command.HasSwitch(scan->flag_name))
       options->insert(scan->option_name);
   }
 
   NormalizeOptions(options);
 }
 
 void ChromeFrameOperations::AddKeyFiles(
-    const std::set<std::wstring>& options,
+    const std::set<string16>& options,
     std::vector<base::FilePath>* key_files) const {
   DCHECK(key_files);
   key_files->push_back(base::FilePath(installer::kChromeFrameDll));
   key_files->push_back(base::FilePath(installer::kChromeFrameHelperExe));
 }
 
 void ChromeFrameOperations::AddComDllList(
-    const std::set<std::wstring>& options,
+    const std::set<string16>& options,
     std::vector<base::FilePath>* com_dll_list) const {
   DCHECK(com_dll_list);
   com_dll_list->push_back(base::FilePath(installer::kChromeFrameDll));
 }
 
 void ChromeFrameOperations::AppendProductFlags(
-    const std::set<std::wstring>& options,
+    const std::set<string16>& options,
     CommandLine* cmd_line) const {
   DCHECK(cmd_line);
   bool is_multi_install = options.find(kOptionMultiInstall) != options.end();
 
   // Add --multi-install if it isn't already there.
   if (is_multi_install && !cmd_line->HasSwitch(switches::kMultiInstall))
     cmd_line->AppendSwitch(switches::kMultiInstall);
 
   // --chrome-frame is always needed.
   cmd_line->AppendSwitch(switches::kChromeFrame);
 
   // ready-mode is only supported in multi-installs of Chrome Frame.
   if (is_multi_install && options.find(kOptionReadyMode) != options.end())
     cmd_line->AppendSwitch(switches::kChromeFrameReadyMode);
 }
 
-void ChromeFrameOperations::AppendRenameFlags(
-    const std::set<std::wstring>& options,
-    CommandLine* cmd_line) const {
+void ChromeFrameOperations::AppendRenameFlags(const std::set<string16>& options,
+                                              CommandLine* cmd_line) const {
   DCHECK(cmd_line);
   bool is_multi_install = options.find(kOptionMultiInstall) != options.end();
 
   // Add --multi-install if it isn't already there.
   if (is_multi_install && !cmd_line->HasSwitch(switches::kMultiInstall))
     cmd_line->AppendSwitch(switches::kMultiInstall);
 
   // --chrome-frame is needed for single installs.
   if (!is_multi_install)
     cmd_line->AppendSwitch(switches::kChromeFrame);
 }
 
-bool ChromeFrameOperations::SetChannelFlags(
-    const std::set<std::wstring>& options,
-    bool set,
-    ChannelInfo* channel_info) const {
+bool ChromeFrameOperations::SetChannelFlags(const std::set<string16>& options,
+                                            bool set,
+                                            ChannelInfo* channel_info) const {
 #if defined(GOOGLE_CHROME_BUILD)
   DCHECK(channel_info);
   bool modified = channel_info->SetChromeFrame(set);
 
   // Always remove the options if we're called to remove flags or if the
   // corresponding option isn't set.
   modified |= channel_info->SetReadyMode(
       set && options.find(kOptionReadyMode) != options.end());
 
   return modified;
 #else
   return false;
 #endif
 }
 
 bool ChromeFrameOperations::ShouldCreateUninstallEntry(
-    const std::set<std::wstring>& options) const {
+    const std::set<string16>& options) const {
   return options.find(kOptionReadyMode) == options.end();
 }
 
 void ChromeFrameOperations::AddDefaultShortcutProperties(
     BrowserDistribution* dist,
     const base::FilePath& target_exe,
     ShellUtil::ShortcutProperties* properties) const {
   NOTREACHED() << "Chrome Frame does not create shortcuts.";
 }
 
+void ChromeFrameOperations::LaunchUserExperiment(
+    const base::FilePath& setup_path,
+    const std::set<string16>& options,
+    InstallStatus status,
+    bool system_level) const {
+  // No experiments yet.  If adding some in the future, need to have
+  // ChromeFrameDistribution::HasUserExperiments() return true.
+  NOTREACHED();
+}
+
 }  // namespace installer