Move shared constants to //components/chrome_cleaner

components/chrome_cleaner/public/constants/constants.h

Index: components/chrome_cleaner/public/constants/constants.h
diff --git a/components/chrome_cleaner/public/constants/constants.h b/components/chrome_cleaner/public/constants/constants.h
index 1009db1cc0163a47f04cb4914f6372eb447853fa..551238d525469f6a9398402ce3d7ad2ced79e2ea 100644
--- a/components/chrome_cleaner/public/constants/constants.h
+++ b/components/chrome_cleaner/public/constants/constants.h
@@ -36,6 +36,10 @@ extern const char kChromeVersionSwitch[];
 // Indicates that crash reporting is enabled for the current user.
 extern const char kEnableCrashReportingSwitch[];
 
+// Specifies the name of experiment group in the alternate engine field trial
+// for a Software Reporter run.
+extern const char kEngineExperimentGroupSwitch[];
+
 // Indicates the execution mode for the Chrome Cleanup Tool. Possible values
 // defined in enum ExecutionMode.
 extern const char kExecutionModeSwitch[];
@@ -43,6 +47,9 @@ extern const char kExecutionModeSwitch[];
 // Indicates that the current user opted into Safe Browsing Extended Reporting.
 extern const char kExtendedSafeBrowsingEnabledSwitch[];
 
+// Specifies the suffix to the registry path where metrics data will be saved.
+extern const char kRegistrySuffixSwitch[];
+
 // Identifier used to group all reports generated during the same run of the
 // software reporter (which may include multiple invocations of the reporter
 /// binary, each generating a report). An ASCII, base-64 encoded random string.