Handles users rotating screen too early

ash/rotator/test/screen_rotation_animator_test_api.cc

Index: ash/rotator/test/screen_rotation_animator_test_api.cc
diff --git a/ash/rotator/test/screen_rotation_animator_test_api.cc b/ash/rotator/test/screen_rotation_animator_test_api.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0c26e474efb6c8aefc78548e1b730d7a91a62036
--- /dev/null
+++ b/ash/rotator/test/screen_rotation_animator_test_api.cc
@@ -0,0 +1,35 @@
+// 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/rotator/test/screen_rotation_animator_test_api.h"
+
+#include "ash/rotator/screen_rotation_animator.h"
+#include "ui/compositor/layer.h"
+#include "ui/compositor/layer_tree_owner.h"
+
+namespace ash {
+namespace test {
+
+ScreenRotationAnimatorTestApi::ScreenRotationAnimatorTestApi(
+    ScreenRotationAnimator* animator)
+    : ui::test::MultiLayerAnimatorTestController(this), animator_(animator) {}
+
+ScreenRotationAnimatorTestApi::~ScreenRotationAnimatorTestApi() {}
+
+void ScreenRotationAnimatorTestApi::DisableAnimationTimers() {
+  animator_->set_disable_animation_timers_for_test(true);
+}
+
+std::vector<ui::LayerAnimator*>
+ScreenRotationAnimatorTestApi::GetLayerAnimators() {
+  std::vector<ui::LayerAnimator*> animators;
+  if (animator_->old_layer_tree_owner_) {
+    animators.insert(animators.end(),
+                     animator_->old_layer_tree_owner_->root()->GetAnimator());
+  }
+  return animators;
+}
+
+}  // namespace test
+}  // namespace ash