Setup DiscardableMemory in the ash process

services/ui/ws/window_server_test_base.cc

 // Copyright 2015 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 "services/ui/ws/window_server_test_base.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
@@ skipping 253 matching lines @@
 }
 
 void WindowServerTestBase::OnWmDeactivateWindow(aura::Window* window) {
   if (window_manager_delegate_)
     window_manager_delegate_->OnWmDeactivateWindow(window);
 }
 
 void WindowServerTestBase::Create(
     const service_manager::Identity& remote_identity,
     mojom::WindowTreeClientRequest request) {
+  const bool create_discardable_memory = false;
   window_tree_clients_.push_back(base::MakeUnique<aura::WindowTreeClient>(
-      connector(), this, nullptr, std::move(request)));
+      connector(), this, nullptr, std::move(request), nullptr,
+      create_discardable_memory));
 }
 
 bool WindowServerTestBase::DeleteWindowTreeHost(
     aura::WindowTreeHostMus* window_tree_host) {
   for (auto iter = window_tree_hosts_.begin(); iter != window_tree_hosts_.end();
        ++iter) {
     if ((*iter).get() == window_tree_host) {
       window_tree_hosts_.erase(iter);
       return true;
     }
   }
   return false;
 }
 
 }  // namespace ui