cros: Use runtime stylus detection for ash palette.

chrome/browser/chromeos/note_taking_helper.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/note_taking_helper.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "apps/launcher.h"
@@ skipping 131 matching lines @@
 void NoteTakingHelper::SetPreferredApp(Profile* profile,
                                        const std::string& app_id) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(profile);
   profile->GetPrefs()->SetString(prefs::kNoteTakingAppId, app_id);
 }
 
 bool NoteTakingHelper::IsAppAvailable(Profile* profile) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(profile);
-  return ash::IsPaletteFeatureEnabled() && !GetAvailableApps(profile).empty();
+  return ash::HasStylusInput() && !GetAvailableApps(profile).empty();
 }
 
 void NoteTakingHelper::LaunchAppForNewNote(Profile* profile,
                                            const base::FilePath& path) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(profile);
 
   LaunchResult result = LaunchResult::NO_APP_SPECIFIED;
   std::string app_id = profile->GetPrefs()->GetString(prefs::kNoteTakingAppId);
   if (!app_id.empty())
@@ skipping 235 matching lines @@
     for (auto& observer : observers_)
       observer.OnAvailableNoteTakingAppsUpdated();
   }
 }
 
 void NoteTakingHelper::OnShutdown(extensions::ExtensionRegistry* registry) {
   extension_registry_observer_.Remove(registry);
 }
 
 }  // namespace chromeos