Provide a link to restart chrome when changing gpu settings

chrome/browser/gpu/gpu_mode_manager.cc

 // Copyright (c) 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 "chrome/browser/gpu/gpu_mode_manager.h"
 
 #include "base/bind.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 20 matching lines @@
           content::GpuDataManager::GetInstance();
       DCHECK(gpu_data_manager);
       gpu_data_manager->DisableHardwareAcceleration();
     }
   }
 }
 
 GpuModeManager::~GpuModeManager() {
 }
 
-bool GpuModeManager::IsGpuModePrefEnabled() const {
+// static
+bool GpuModeManager::IsGpuModePrefEnabled() {
   PrefService* service = g_browser_process->local_state();
   DCHECK(service);
   return service->GetBoolean(
       prefs::kHardwareAccelerationModeEnabled);
 }