Add support for GCM subtypes to desktop Instance ID implementation

ios/chrome/browser/application_context_impl.cc

Index: ios/chrome/browser/application_context_impl.cc
diff --git a/ios/chrome/browser/application_context_impl.cc b/ios/chrome/browser/application_context_impl.cc
index 4f7ace27c42356a3cf80bf31b99e06da561a19dd..e07cbc08eaec833d266e7b4a432b3c1a27b2b696 100644
--- a/ios/chrome/browser/application_context_impl.cc
+++ b/ios/chrome/browser/application_context_impl.cc
@@ -46,6 +46,7 @@
 #include "ios/chrome/browser/pref_names.h"
 #include "ios/chrome/browser/prefs/browser_prefs.h"
 #include "ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h"
+#include "ios/chrome/browser/services/gcm/ios_chrome_gcm_profile_service_factory.h"
 #include "ios/chrome/browser/update_client/ios_chrome_update_query_params_delegate.h"
 #include "ios/chrome/browser/web_resource/web_resource_util.h"
 #include "ios/chrome/common/channel_info.h"
@@ -338,6 +339,7 @@ void ApplicationContextImpl::CreateGCMDriver() {
 
   base::FilePath store_path;
   CHECK(PathService::Get(ios::DIR_GLOBAL_GCM_STORE, &store_path));
+
   base::SequencedWorkerPool* worker_pool = web::WebThread::GetBlockingPool();
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner(
       worker_pool->GetSequencedTaskRunnerWithShutdownBehavior(
@@ -347,6 +349,7 @@ void ApplicationContextImpl::CreateGCMDriver() {
   gcm_driver_ = gcm::CreateGCMDriverDesktop(
       base::WrapUnique(new gcm::GCMClientFactory), GetLocalState(), store_path,
       GetSystemURLRequestContext(), ::GetChannel(),
+      IOSChromeGCMProfileServiceFactory::GetProductCategoryForSubtypes(),
       web::WebThread::GetTaskRunnerForThread(web::WebThread::UI),
       web::WebThread::GetTaskRunnerForThread(web::WebThread::IO),
       blocking_task_runner);