Pulling user experiment code from BrowserDistribution to a new class.

chrome/installer/util/chrome_browser_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_browser_operations.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 118 matching lines @@
     bool is_per_user_install =
         InstallUtil::IsPerUserInstall(target_exe.value().c_str());
     properties->set_app_id(
         ShellUtil::GetBrowserModelId(dist, is_per_user_install));
   }
 
   if (!properties->has_description())
     properties->set_description(dist->GetAppDescription());
 }
 
+bool ChromeBrowserOperations::ShouldLaunchUserExperiment() const {
+#if defined(GOOGLE_CHROME_BUILD)
+  return true;
+#else
+  return false;
+#endif  // defined(GOOGLE_CHROME_BUILD)
+}
+
 }  // namespace installer