[GCM] Make sure GCM checkout logic is invoked when the profile is signed out

chrome/browser/extensions/api/gcm/gcm_api.cc

 // Copyright 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/extensions/api/gcm/gcm_api.h"
 
 #include <algorithm>
 #include <map>
 #include <vector>
 
@@ skipping 79 matching lines @@
 namespace extensions {
 
 bool GcmApiFunction::RunImpl() {
   if (!IsGcmApiEnabled())
     return false;
 
   return DoWork();
 }
 
 bool GcmApiFunction::IsGcmApiEnabled() const {
-  return gcm::GCMProfileService::IsGCMEnabled(
-             Profile::FromBrowserContext(context()));
+  Profile* profile = Profile::FromBrowserContext(context());
+
+  // GCM is not supported in incognito mode.
+  if (profile->IsOffTheRecord())
+    return false;
+
+  return gcm::GCMProfileService::GetGCMEnabledState(profile) !=
+      gcm::GCMProfileService::ALWAYS_DISABLED;
 }
 
 gcm::GCMProfileService* GcmApiFunction::GCMProfileService() const {
   return gcm::GCMProfileServiceFactory::GetForProfile(
       Profile::FromBrowserContext(context()));
 }
 
 GcmRegisterFunction::GcmRegisterFunction() {}
 
 GcmRegisterFunction::~GcmRegisterFunction() {}
@@ skipping 113 matching lines @@
 
   scoped_ptr<Event> event(new Event(
       api::gcm::OnSendError::kEventName,
       api::gcm::OnSendError::Create(error).Pass(),
       profile_));
   ExtensionSystem::Get(profile_)->event_router()->DispatchEventToExtension(
       app_id, event.Pass());
 }
 
 }  // namespace extensions