Add TriggerOnUninstalled to ExtensionRegistry

extensions/browser/extension_registry.cc

 // Copyright 2013 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 "extensions/browser/extension_registry.h"
 
 #include "base/strings/string_util.h"
 #include "extensions/browser/extension_registry_factory.h"
 #include "extensions/browser/extension_registry_observer.h"
 
@@ skipping 47 matching lines @@
                                                  const std::string& old_name) {
   DCHECK(is_update ==
          GenerateInstalledExtensionsSet()->Contains(extension->id()));
   DCHECK(is_update == !old_name.empty());
   FOR_EACH_OBSERVER(ExtensionRegistryObserver,
                     observers_,
                     OnExtensionWillBeInstalled(
                         browser_context_, extension, is_update, old_name));
 }
 
+void ExtensionRegistry::TriggerOnUninstalled(const Extension* extension) {
+  DCHECK(!GenerateInstalledExtensionsSet()->Contains(extension->id()));
+  FOR_EACH_OBSERVER(ExtensionRegistryObserver,
+                    observers_,
+                    OnExtensionUninstalled(browser_context_, extension));
+}
+
 const Extension* ExtensionRegistry::GetExtensionById(const std::string& id,
                                                      int include_mask) const {
   std::string lowercase_id = StringToLowerASCII(id);
   if (include_mask & ENABLED) {
     const Extension* extension = enabled_extensions_.GetByID(lowercase_id);
     if (extension)
       return extension;
   }
   if (include_mask & DISABLED) {
     const Extension* extension = disabled_extensions_.GetByID(lowercase_id);
@@ skipping 60 matching lines @@
     const ExtensionSet::ModificationCallback& callback) {
   disabled_extensions_.set_modification_callback(callback);
 }
 
 void ExtensionRegistry::Shutdown() {
   // Release references to all Extension objects in the sets.
   ClearAll();
 }
 
 }  // namespace extensions