Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

chrome/browser/extensions/extension_toolbar_model.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/extensions/extension_toolbar_model.h"
 
 #include <string>
 
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_base.h"
@@ skipping 174 matching lines @@
 
 void ExtensionToolbarModel::OnExtensionUnloaded(
     content::BrowserContext* browser_context,
     const Extension* extension,
     UnloadedExtensionInfo::Reason reason) {
   RemoveExtension(extension);
 }
 
 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 =
       std::find(last_known_positions_.begin(),
                 last_known_positions_.end(), extension->id());
 
   if (pos != last_known_positions_.end()) {
     last_known_positions_.erase(pos);
     UpdatePrefs();
   }
@@ skipping 376 matching lines @@
     is_highlighting_ = false;
     if (old_visible_icon_count_ != visible_icon_count_) {
       SetVisibleIconCount(old_visible_icon_count_);
       FOR_EACH_OBSERVER(Observer, observers_, VisibleCountChanged());
     }
     FOR_EACH_OBSERVER(Observer, observers_, HighlightModeChanged(false));
   }
 }
 
 }  // namespace extensions