Rollback option for device reset put behind the flag.

BUG=356728

Review URL: https://codereview.chromium.org/212833004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@259841 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/webui/chromeos/login/reset_screen_handler.cc

@@ -13,7 +13,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/login/help_app_launcher.h"
 #include "chrome/browser/chromeos/reset/metrics.h"
-#include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
@@ -97,7 +96,11 @@ void ResetScreenHandler::Show() {
   rollback_available_ = false;
   if (!restart_required_)  // First exec after boot.
     reboot_was_requested_ = prefs->GetBoolean(prefs::kFactoryResetRequested);
-  if (!restart_required_ && reboot_was_requested_) {
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableRollbackOption)) {
+    rollback_available_ = false;
+    ShowWithParams();
+  } else if (!restart_required_ && reboot_was_requested_) {
     // First exec after boot.
     rollback_available_ = prefs->GetBoolean(prefs::kRollbackRequested);
     ShowWithParams();

chromeos/chromeos_switches.cc

@@ -77,6 +77,9 @@ const char kEnableTouchpadThreeFingerClick[]
 // than the kiosk app mode.
 const char kEnableKioskMode[]               = "enable-kiosk-mode";
 
+// Enables rollback option for resetting ChromeOS.
+const char kEnableRollbackOption[]          = "enable-rollback-option";
+
 // Enables request of tablet site (via user agent override).
 const char kEnableRequestTabletSite[]       = "enable-request-tablet-site";
 

chromeos/chromeos_switches.h

@@ -39,6 +39,7 @@ CHROMEOS_EXPORT extern const char kEchoExtensionPath[];
 CHROMEOS_EXPORT extern const char kEnableCarrierSwitching[];
 CHROMEOS_EXPORT extern const char kEnableKioskMode[];
 CHROMEOS_EXPORT extern const char kEnableNetworkPortalNotification[];
+CHROMEOS_EXPORT extern const char kEnableRollbackOption[];
 CHROMEOS_EXPORT extern const char kEnableRequestTabletSite[];
 CHROMEOS_EXPORT extern const char kEnableTouchpadThreeFingerClick[];
 CHROMEOS_EXPORT extern const char kEnterpriseEnableForcedReEnrollment[];