Reload ChromeVox panel when reloading ChromeVox into a new profile.

chrome/browser/chromeos/accessibility/accessibility_extension_loader.cc

 // Copyright 2016 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/chromeos/accessibility/accessibility_extension_loader.h"
 
 #include "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/path_service.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
@@ skipping 113 matching lines @@
     : profile_(nullptr),
       extension_id_(extension_id),
       extension_path_(extension_path),
       loaded_on_lock_screen_(false),
       loaded_on_user_screen_(false),
       unload_callback_(unload_callback),
       weak_ptr_factory_(this) {}
 
 AccessibilityExtensionLoader::~AccessibilityExtensionLoader() {}
 
-void AccessibilityExtensionLoader::SetProfile(Profile* profile) {
+void AccessibilityExtensionLoader::SetProfile(
+    Profile* profile,
+    const base::Closure& done_callback) {
   profile_ = profile;
 
   if (!loaded_on_user_screen_ && !loaded_on_lock_screen_)
     return;
 
   // If the extension was already enabled, but not for this profile, add it
   // to this profile.
   auto* extension_service =
       extensions::ExtensionSystem::Get(profile_)->extension_service();
   auto* component_loader = extension_service->component_loader();
   if (!component_loader->Exists(extension_id_))
-    LoadExtension(profile_, nullptr, base::Closure());
+    LoadExtension(profile_, nullptr, done_callback);
 }
 
 void AccessibilityExtensionLoader::Load(Profile* profile,
                                         const std::string& init_script_str,
                                         const base::Closure& done_cb) {
   profile_ = profile;
   init_script_str_ = init_script_str;
   ScreenLocker* screen_locker = ScreenLocker::default_screen_locker();
   if (screen_locker && screen_locker->locked()) {
     // If on the lock screen, loads only to the lock screen as for
@@ skipping 145 matching lines @@
         weak_ptr_factory_.GetWeakPtr(), extension_service,
         render_view_host->GetProcess()->GetID(),
         render_view_host->GetRoutingID(), done_cb);
   }
 
   extension_service->component_loader()->AddComponentFromDir(
       extension_path_, extension_id_.c_str(), done_cb);
 }
 
 }  // namespace chromeos