Do V8 GC ASAP if system memory is pressured

components/browser_sync/browser/profile_sync_service.cc

Index: components/browser_sync/browser/profile_sync_service.cc
diff --git a/components/browser_sync/browser/profile_sync_service.cc b/components/browser_sync/browser/profile_sync_service.cc
index 57d68214bbf7584b86813cb0f894607f906a5b4b..57f500b36915c0ab746adae3d42c5fca6a4865db 100644
--- a/components/browser_sync/browser/profile_sync_service.cc
+++ b/components/browser_sync/browser/profile_sync_service.cc
@@ -376,8 +376,9 @@ void ProfileSyncService::Initialize() {
   AddObserver(sync_error_controller_.get());
 #endif
 
-  memory_pressure_listener_.reset(new base::MemoryPressureListener(base::Bind(
-      &ProfileSyncService::OnMemoryPressure, weak_factory_.GetWeakPtr())));
+  memory_pressure_listener_.reset(base::MemoryPressureListener::Create(
+      base::Bind(&ProfileSyncService::OnMemoryPressure,
+          weak_factory_.GetWeakPtr())));
   startup_controller_->Reset(GetRegisteredDataTypes());
   startup_controller_->TryStart();
 }