struct UnloadedExtensionInfo -> enum UnloadedExtensionInfoReason

extensions/shell/browser/shell_extension_system.cc

 // 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.
 
 #include "extensions/shell/browser/shell_extension_system.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 157 matching lines @@
     const base::Closure& callback) {
   BrowserThread::PostTaskAndReply(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&InfoMap::AddExtension, info_map(),
                  base::RetainedRef(extension), base::Time::Now(), false, false),
       callback);
 }
 
 void ShellExtensionSystem::UnregisterExtensionWithRequestContexts(
     const std::string& extension_id,
-    const UnloadedExtensionInfo::Reason reason) {
-}
+    const UnloadedExtensionReason reason) {}
 
 const OneShotEvent& ShellExtensionSystem::ready() const {
   return ready_;
 }
 
 ContentVerifier* ShellExtensionSystem::content_verifier() {
   return nullptr;
 }
 
 std::unique_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
     const Extension* extension) {
   return base::MakeUnique<ExtensionSet>();
 }
 
 void ShellExtensionSystem::InstallUpdate(const std::string& extension_id,
                                          const base::FilePath& temp_dir) {
   NOTREACHED();
   base::DeleteFile(temp_dir, true /* recursive */);
 }
 
 void ShellExtensionSystem::OnExtensionRegisteredWithRequestContexts(
     scoped_refptr<Extension> extension) {
   ExtensionRegistry* registry = ExtensionRegistry::Get(browser_context_);
   registry->AddReady(extension);
   registry->TriggerOnReady(extension.get());
 }
 
 }  // namespace extensions