Do not show the activity widget in ActivityManager::AddActivity

athena/resource_manager/resource_manager_impl.cc

Index: athena/resource_manager/resource_manager_impl.cc
diff --git a/athena/resource_manager/resource_manager_impl.cc b/athena/resource_manager/resource_manager_impl.cc
index 9c18a757a4611e925db5309504e7a58e31dd9d71..3cb303acb00b720f03c42123d9729d9b90f5de43 100644
--- a/athena/resource_manager/resource_manager_impl.cc
+++ b/athena/resource_manager/resource_manager_impl.cc
@@ -22,6 +22,7 @@
 #include "ui/aura/window.h"
 
 namespace athena {
+namespace {
 
 class ResourceManagerImpl : public ResourceManager,
                             public WindowManagerObserver,
@@ -459,6 +460,8 @@ bool ResourceManagerImpl::AllowedToUnloadActivity() {
          base::Time::Now() >= next_resource_management_time_;
 }
 
+}  // namespace
+
 // static
 void ResourceManager::Create() {
   DCHECK(!instance);