Move shared constants to //components/chrome_cleaner

chrome/browser/component_updater/sw_reporter_installer_win.cc

Index: chrome/browser/component_updater/sw_reporter_installer_win.cc
diff --git a/chrome/browser/component_updater/sw_reporter_installer_win.cc b/chrome/browser/component_updater/sw_reporter_installer_win.cc
index c15810bccc4f0a32eb81a0325187a6d760c1554c..ea42ade3b43c7768645903aec21d8af1b57da29f 100644
--- a/chrome/browser/component_updater/sw_reporter_installer_win.cc
+++ b/chrome/browser/component_updater/sw_reporter_installer_win.cc
@@ -250,16 +250,17 @@ void RunExperimentalSwReporter(const base::FilePath& exe_path,
     const std::string experiment_group =
         variations::GetVariationParamValueByFeature(
             kExperimentalEngineFeature, "experiment_group_for_reporting");
-    command_line.AppendSwitchNative("engine-experiment-group",
-                                    experiment_group.empty()
-                                        ? L"missing_experiment_group"
-                                        : base::UTF8ToUTF16(experiment_group));
+    command_line.AppendSwitchNative(
+        chrome_cleaner::kEngineExperimentGroupSwitch,
+        experiment_group.empty() ? L"missing_experiment_group"
+                                 : base::UTF8ToUTF16(experiment_group));
 
     // Add the histogram suffix to the command-line as well, so that the
     // reporter will add the same suffix to registry keys where it writes
     // metrics.
     if (!suffix.empty())
-      command_line.AppendSwitchASCII("registry-suffix", suffix);
+      command_line.AppendSwitchASCII(chrome_cleaner::kRegistrySuffixSwitch,
+                                     suffix);
 
     SwReporterInvocation::Behaviours supported_behaviours = 0;
     if (!GetOptionalBehaviour(invocation_params, "prompt",