[MD Settings][MD User Manager] create/manage profile desktop shortcut (Windows only)

chrome/browser/ui/webui/settings/settings_manage_profile_handler.cc

 // Copyright 2015 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/ui/webui/settings/settings_manage_profile_handler.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 156 matching lines @@
   base::string16 new_profile_name;
   CHECK(args->GetString(1, &new_profile_name));
 
   base::TrimWhitespace(new_profile_name, base::TRIM_ALL, &new_profile_name);
   CHECK(!new_profile_name.empty());
   profiles::UpdateProfileName(profile_, new_profile_name);
 }
 
 void ManageProfileHandler::HandleRequestHasProfileShortcuts(
     const base::ListValue* args) {
+  AllowJavascript();
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(ProfileShortcutManager::IsFeatureEnabled());
 
+  CHECK_EQ(1U, args->GetSize());
+  const base::Value* callback_id;
+  CHECK(args->Get(0, &callback_id));
+
   ProfileAttributesStorage& storage =
       g_browser_process->profile_manager()->GetProfileAttributesStorage();
   ProfileAttributesEntry* entry;
   if (!storage.GetProfileAttributesWithPath(profile_->GetPath(), &entry))
     return;
 
   // Don't show the add/remove desktop shortcut button in the single user case.
   if (storage.GetNumberOfProfiles() <= 1u)
     return;
 
   ProfileShortcutManager* shortcut_manager =
       g_browser_process->profile_manager()->profile_shortcut_manager();
+  DCHECK(shortcut_manager);
   shortcut_manager->HasProfileShortcuts(
       profile_->GetPath(),
       base::Bind(&ManageProfileHandler::OnHasProfileShortcuts,
-                 weak_factory_.GetWeakPtr()));
+                 weak_factory_.GetWeakPtr(), callback_id));
 }
 
-void ManageProfileHandler::OnHasProfileShortcuts(bool has_shortcuts) {
+void ManageProfileHandler::OnHasProfileShortcuts(
+    const base::Value* callback_id, bool has_shortcuts) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-
-  const base::FundamentalValue has_shortcuts_value(has_shortcuts);
-  CallJavascriptFunction("settings.SyncPrivateApi.receiveHasProfileShortcuts",
-                         has_shortcuts_value);
+  ResolveJavascriptCallback(*callback_id,
+                            base::FundamentalValue(has_shortcuts));
 }
 
 void ManageProfileHandler::HandleAddProfileShortcut(
     const base::ListValue* args) {
   DCHECK(ProfileShortcutManager::IsFeatureEnabled());
   ProfileShortcutManager* shortcut_manager =
       g_browser_process->profile_manager()->profile_shortcut_manager();
   DCHECK(shortcut_manager);
 
   shortcut_manager->CreateProfileShortcut(profile_->GetPath());
-
-  // Update the UI buttons.
-  OnHasProfileShortcuts(true);
 }
 
 void ManageProfileHandler::HandleRemoveProfileShortcut(
     const base::ListValue* args) {
   DCHECK(ProfileShortcutManager::IsFeatureEnabled());
   ProfileShortcutManager* shortcut_manager =
     g_browser_process->profile_manager()->profile_shortcut_manager();
   DCHECK(shortcut_manager);
 
   shortcut_manager->RemoveProfileShortcuts(profile_->GetPath());
-
-  // Update the UI buttons.
-  OnHasProfileShortcuts(false);
 }
 
 }  // namespace settings