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

chrome/browser/extensions/extension_prefs.h

Index: chrome/browser/extensions/extension_prefs.h
diff --git a/chrome/browser/extensions/extension_prefs.h b/chrome/browser/extensions/extension_prefs.h
index 39c0360986c0bb44495280abafcfd12b16aa39e9..d7ead3407b7e4a0428145bef49d31ec7f7194322 100644
--- a/chrome/browser/extensions/extension_prefs.h
+++ b/chrome/browser/extensions/extension_prefs.h
@@ -139,6 +139,12 @@ class ExtensionPrefs : public ExtensionContentSettingsStore::Observer,
   void SetDidExtensionEscalatePermissions(const Extension* extension,
                                           bool did_escalate);
 
+  // Getter and setters for disabled reason.
+  Extension::DisableReason GetDisableReason(const std::string& extension_id);
+  void SetDisableReason(const std::string& extension_id,
+                        Extension::DisableReason disable_reason);
+  void RemoveDisableReason(const std::string& extension_id);
+
   // Returns the version string for the currently installed extension, or
   // the empty string if not found.
   std::string GetVersionString(const std::string& extension_id);