Fixes aura build on windows. Makes all tests use the test compositor

ui/aura/aura_test_base.cc

+// Copyright (c) 2011 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/aura_test_base.h"
+
+#if defined(OS_WIN)
+#include <ole2.h>
+#endif
+
+#include "ui/aura/desktop.h"
+#include "ui/gfx/compositor/test_compositor.h"
+
+namespace aura {
+
+static ui::Compositor* TestCreateCompositor() {
+  return new ui::TestCompositor();
+}
+
+AuraTestBase::AuraTestBase()
+    : setup_called_(false),
+      teardown_called_(false) {
+#if defined(OS_WIN)
+  OleInitialize(NULL);
+#endif
+}
+
+AuraTestBase::~AuraTestBase() {
+#if defined(OS_WIN)
+  OleUninitialize();
+#endif
+  CHECK(setup_called_)
+      << "You have overridden SetUp but never called super class's SetUp";
+  CHECK(teardown_called_)
+      << "You have overrideen TearDown but never called super class's TearDown";
+}
+
+void AuraTestBase::SetUp() {
+  testing::Test::SetUp();
+  setup_called_ = true;
+  aura::Desktop::set_compositor_factory_for_testing(&TestCreateCompositor);
+  if (!aura::Desktop::GetInstance()->default_parent())
+    aura::Desktop::GetInstance()->CreateDefaultParentForTesting();
+  Desktop::GetInstance()->Show();
+  Desktop::GetInstance()->SetSize(gfx::Size(500, 500));
+}
+
+void AuraTestBase::TearDown() {
+  // Flush the message loop because we have pending release tasks
+  // and these tasks if un-executed would upset Valgrind.
+  RunPendingMessages();
+  teardown_called_ = true;
+  testing::Test::TearDown();
+  aura::Desktop::set_compositor_factory_for_testing(NULL);
+}
+
+}  // namespace aura