Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

extensions/browser/state_store.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_STATE_STORE_H_
 #define CHROME_BROWSER_EXTENSIONS_STATE_STORE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 58 matching lines @@
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   void Init();
 
   // Removes all keys registered for the given extension.
   void RemoveKeysForExtension(const std::string& extension_id);
 
   // ExtensionRegistryObserver implementation.
-  virtual void OnExtensionUninstalled(content::BrowserContext* browser_context,
-                                      const Extension* extension) OVERRIDE;
+  virtual void OnExtensionUninstalled(
+      content::BrowserContext* browser_context,
+      const Extension* extension,
+      extensions::UninstallReason reason) OVERRIDE;
   virtual void OnExtensionWillBeInstalled(
       content::BrowserContext* browser_context,
       const Extension* extension,
       bool is_update,
       bool from_ephemeral,
       const std::string& old_name) OVERRIDE;
 
   // Path to our database, on disk. Empty during testing.
   base::FilePath db_path_;
 
   // The store that holds our key/values.
   ValueStoreFrontend store_;
 
   // List of all known keys. They will be cleared for each extension when it is
   // (un)installed.
   std::set<std::string> registered_keys_;
 
   // Keeps track of tasks we have delayed while starting up.
   scoped_ptr<DelayedTaskQueue> task_queue_;
 
   content::NotificationRegistrar registrar_;
 
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_STATE_STORE_H_