Allow extension overinstall

chrome/browser/automation/automation_provider_observers.cc

Index: chrome/browser/automation/automation_provider_observers.cc
diff --git a/chrome/browser/automation/automation_provider_observers.cc b/chrome/browser/automation/automation_provider_observers.cc
index ce1750ec907397cacb9ed777d3facd230bb1efe2..cdb5de8b71e939126a27d2085035d068406a4b80 100644
--- a/chrome/browser/automation/automation_provider_observers.cc
+++ b/chrome/browser/automation/automation_provider_observers.cc
@@ -305,8 +305,6 @@ ExtensionInstallNotificationObserver::ExtensionInstallNotificationObserver(
                  NotificationService::AllSources());
   registrar_.Add(this, NotificationType::EXTENSION_INSTALL_ERROR,
                  NotificationService::AllSources());
-  registrar_.Add(this, NotificationType::EXTENSION_OVERINSTALL_ERROR,
-                 NotificationService::AllSources());
   registrar_.Add(this, NotificationType::EXTENSION_UPDATE_DISABLED,
                  NotificationService::AllSources());
 }
@@ -325,9 +323,6 @@ void ExtensionInstallNotificationObserver::Observe(
     case NotificationType::EXTENSION_UPDATE_DISABLED:
       SendResponse(AUTOMATION_MSG_EXTENSION_INSTALL_FAILED);
       break;
-    case NotificationType::EXTENSION_OVERINSTALL_ERROR:
-      SendResponse(AUTOMATION_MSG_EXTENSION_ALREADY_INSTALLED);
-      break;
     default:
       NOTREACHED();
       break;
@@ -372,8 +367,6 @@ ExtensionReadyNotificationObserver::ExtensionReadyNotificationObserver(
                  NotificationService::AllSources());
   registrar_.Add(this, NotificationType::EXTENSION_INSTALL_ERROR,
                  NotificationService::AllSources());
-  registrar_.Add(this, NotificationType::EXTENSION_OVERINSTALL_ERROR,
-                 NotificationService::AllSources());
   registrar_.Add(this, NotificationType::EXTENSION_UPDATE_DISABLED,
                  NotificationService::AllSources());
 }
@@ -401,7 +394,6 @@ void ExtensionReadyNotificationObserver::Observe(
       break;
     case NotificationType::EXTENSION_INSTALL_ERROR:
     case NotificationType::EXTENSION_UPDATE_DISABLED:
-    case NotificationType::EXTENSION_OVERINSTALL_ERROR:
       success = false;
       break;
     default: