Handles users rotating screen too early

ash/display/display_configuration_controller_unittest.cc

+// Copyright 2017 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 "ash/common/wm_shell.h"
+#include "ash/rotator/screen_rotation_animator.h"
+#include "ash/shell.h"
+#include "ash/test/ash_test_base.h"
+#include "ash/test/display_configuration_controller_test_api.h"
+
+namespace ash {
+namespace test {
+
+class DisplayConfigurationControllerTest : public AshTestBase {
+ public:
+  DisplayConfigurationControllerTest() {}
+  ~DisplayConfigurationControllerTest() override {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DisplayConfigurationControllerTest);

[bruthig, 2017/03/08 22:35:59]

Missing "#include base/macros.h" for DISALLOW_COPY_AND_ASSIGN.

[wutao, 2017/03/09 22:09:19]

Done.

+};
+
+TEST_F(DisplayConfigurationControllerTest, ErasesAnimatorOnAnimationEnded) {
+  // TODO(wutao): needs display_configuration_controller.
+  if (WmShell::Get()->IsRunningInMash())
+    return;
+
+  display::Display display = display::Screen::GetScreen()->GetPrimaryDisplay();
+  DisplayConfigurationControllerTestApi testapi(
+      Shell::GetInstance()->display_configuration_controller());
+  ScreenRotationAnimator* screen_rotation_animator =
+      testapi.GetScreenRotationAnimatorForDisplay(display.id());
+  EXPECT_EQ(1, testapi.DisplayScreenRotationAnimatorMapSize());
+
+  display.set_rotation(display::Display::ROTATE_0);
+  screen_rotation_animator->Rotate(
+      display::Display::ROTATE_90,
+      display::Display::RotationSource::ROTATION_SOURCE_USER);
+  EXPECT_EQ(0, testapi.DisplayScreenRotationAnimatorMapSize());
+}
+
+}  // namespace test
+}  // namespace ash