Runs most aura tests with both backends

ui/aura/test/aura_test_base.cc

 // Copyright (c) 2012 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 "ui/aura/test/aura_test_base.h"
 
 #include "ui/aura/client/window_parenting_client.h"
 #include "ui/aura/mus/property_converter.h"
 #include "ui/aura/mus/window_tree_client.h"
 #include "ui/aura/test/test_window_delegate.h"
@@ skipping 127 matching lines @@
   window->SetBounds(gfx::Rect(0, 0, 100, 100));
   window->Show();
   return window;
 }
 
 void AuraTestBase::EnableMus() {
   DCHECK(!setup_called_);
   use_mus_ = true;
 }
 
+void AuraTestBase::ConfigureBackend(BackendType type) {
+  if (type == BackendType::MUS)
+    EnableMus();
+}
+
 void AuraTestBase::RunAllPendingInMessageLoop() {
   helper_->RunAllPendingInMessageLoop();
 }
 
 void AuraTestBase::ParentWindow(Window* window) {
   client::ParentWindowWithContext(window, root_window(), gfx::Rect());
 }
 
 bool AuraTestBase::DispatchEventUsingWindowDispatcher(ui::Event* event) {
   ui::EventDispatchDetails details =
@@ skipping 69 matching lines @@
 }
 
 client::CaptureClient* AuraTestBase::GetCaptureClient() {
   return helper_->capture_client();
 }
 
 PropertyConverter* AuraTestBase::GetPropertyConverter() {
   return property_converter_.get();
 }
 
+AuraTestBaseWithType::AuraTestBaseWithType() {}
+
+AuraTestBaseWithType::~AuraTestBaseWithType() {
+  DCHECK(setup_called_);
+}
+
+void AuraTestBaseWithType::SetUp() {
+  DCHECK(!setup_called_);
+  setup_called_ = true;
+  ConfigureBackend(GetParam());
+  AuraTestBase::SetUp();
+}
+
 }  // namespace test
 }  // namespace aura