Pulling user experiment code from BrowserDistribution to a new class.

chrome/installer/util/product_operations.h

 // 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_INSTALLER_UTIL_PRODUCT_OPERATIONS_H_
 #define CHROME_INSTALLER_UTIL_PRODUCT_OPERATIONS_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "chrome/installer/util/shell_util.h"
+#include "chrome/installer/util/util_constants.h"
 
 class BrowserDistribution;
 class CommandLine;
 
 namespace installer {
 
 class ChannelInfo;
 class MasterPreferences;
 
 // An interface to product-specific operations that depend on product
@@ skipping 50 matching lines @@
   // MSI; see InstallerState::is_msi.
   virtual bool ShouldCreateUninstallEntry(
       const std::set<std::wstring>& options) const = 0;
 
   // Modifies a ShellUtil::ShortcutProperties object by assigning default values
   // to unintialized members.
   virtual void AddDefaultShortcutProperties(
       BrowserDistribution* dist,
       const base::FilePath& target_exe,
       ShellUtil::ShortcutProperties* properties) const = 0;
+
+  // After an install or upgrade the user might qualify to participate in an
+  // experiment. This function determines if the user qualifies and if so it
+  // sets the wheels in motion or in simple cases does the experiment itself.
+  virtual void LaunchUserExperiment(const base::FilePath& setup_path,
+                                    const std::set<std::wstring>& options,
+                                    BrowserDistribution* dist,
+                                    InstallStatus status,
+                                    bool system_level) const = 0;
 };
 
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_UTIL_PRODUCT_OPERATIONS_H_