Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

chrome/browser/extensions/extension_toolbar_model.cc

Index: chrome/browser/extensions/extension_toolbar_model.cc
diff --git a/chrome/browser/extensions/extension_toolbar_model.cc b/chrome/browser/extensions/extension_toolbar_model.cc
index b4d223c1c76aa9c683315c6cd8dd5f8ac5836a5d..d155b4ac8aa6841f9d377d2e6a2c15c6c9fdd185 100644
--- a/chrome/browser/extensions/extension_toolbar_model.cc
+++ b/chrome/browser/extensions/extension_toolbar_model.cc
@@ -192,7 +192,8 @@ void ExtensionToolbarModel::OnExtensionUnloaded(
 
 void ExtensionToolbarModel::OnExtensionUninstalled(
     content::BrowserContext* browser_context,
-    const Extension* extension) {
+    const Extension* extension,
+    extensions::UninstallReason reason) {
   // Remove the extension id from the ordered list, if it exists (the extension
   // might not be represented in the list because it might not have an icon).
   ExtensionIdList::iterator pos =