Allow extension overinstall

chrome/common/notification_type.h

Index: chrome/common/notification_type.h
diff --git a/chrome/common/notification_type.h b/chrome/common/notification_type.h
index 418ce97ac3773796bad0fd8c319f975a3111bacf..17ccf042edc5582e672fd96bbf82fb6d00fc35c9 100644
--- a/chrome/common/notification_type.h
+++ b/chrome/common/notification_type.h
@@ -735,8 +735,7 @@ class NotificationType {
     // manager and the details are the download url.
     EXTENSION_READY_FOR_INSTALL,
 
-    // Sent on ExtensionOverinstallAttempted when no theme is detected. The
-    // source is a Profile.
+    // Sent when an extension install turns out to not be a theme.
     NO_THEME_DETECTED,
 
     // Sent when a new theme is installed. The details are an Extension, and the
@@ -751,10 +750,6 @@ class NotificationType {
     // details about why the install failed.
     EXTENSION_INSTALL_ERROR,
 
-    // An overinstall error occured during extension install. The details are a
-    // FilePath to the extension that was attempted to install.
-    EXTENSION_OVERINSTALL_ERROR,
-
     // Sent when an extension is unloaded. This happens when an extension is
     // uninstalled or disabled. The details are an Extension, and the source is
     // a Profile.