Revert 13676 - Revert 131665 - Add a preference for why an extension is disabled.

chrome/browser/extensions/extension_prefs.cc

Index: chrome/browser/extensions/extension_prefs.cc
diff --git a/chrome/browser/extensions/extension_prefs.cc b/chrome/browser/extensions/extension_prefs.cc
index 2c5dc80dedba1f11412b7935529e3c7af619c25d..91c1a6dbc3bd952124b5a45a99103297ef96b422 100644
--- a/chrome/browser/extensions/extension_prefs.cc
+++ b/chrome/browser/extensions/extension_prefs.cc
@@ -57,6 +57,9 @@ const char kPrefOrphanAcknowledged[] = "ack_orphan";
 // Indicates whether to show an install warning when the user enables.
 const char kExtensionDidEscalatePermissions[] = "install_warning_on_enable";
 
+// Indicates whether the extension was updated while it was disabled.
+const char kPrefDisableReason[] = "disable_reason";
+
 // A preference that tracks browser action toolbar configuration. This is a list
 // object stored in the Preferences file. The extensions are stored by ID.
 const char kExtensionToolbar[] = "extensions.toolbar";
@@ -673,6 +676,27 @@ void ExtensionPrefs::SetDidExtensionEscalatePermissions(
                       Value::CreateBooleanValue(did_escalate));
 }
 
+Extension::DisableReason ExtensionPrefs::GetDisableReason(
+    const std::string& extension_id) {
+  int value = -1;
+  if (ReadExtensionPrefInteger(extension_id, kPrefDisableReason, &value) &&
+      value >= 0 && value < Extension::DISABLE_LAST) {
+    return static_cast<Extension::DisableReason>(value);
+  }
+  return Extension::DISABLE_UNKNOWN;
+}
+
+void ExtensionPrefs::SetDisableReason(const std::string& extension_id,
+                                      Extension::DisableReason disable_reason) {
+  UpdateExtensionPref(
+      extension_id, kPrefDisableReason,
+      Value::CreateIntegerValue(static_cast<int>(disable_reason)));
+}
+
+void ExtensionPrefs::RemoveDisableReason(const std::string& extension_id) {
+  UpdateExtensionPref(extension_id, kPrefDisableReason, NULL);
+}
+
 void ExtensionPrefs::UpdateBlacklist(
     const std::set<std::string>& blacklist_set) {
   std::vector<std::string> remove_pref_ids;