Added ui::test::MultiLayerAnimatorTestController and Delegate.

ui/compositor/test/multi_layer_animator_test_controller.cc

+// Copyright 2016 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/compositor/test/multi_layer_animator_test_controller.h"
+
+#include "base/time/time.h"
+#include "ui/compositor/layer.h"
+#include "ui/compositor/layer_animator.h"
+#include "ui/compositor/test/layer_animator_test_controller.h"
+#include "ui/compositor/test/multi_layer_animator_test_controller_delegate.h"
+
+namespace ui {
+namespace test {
+
+MultiLayerAnimatorTestController::MultiLayerAnimatorTestController(
+    MultiLayerAnimatorTestControllerDelegate* delegate)
+    : delegate_(delegate) {}
+
+MultiLayerAnimatorTestController::~MultiLayerAnimatorTestController() {}
+
+void MultiLayerAnimatorTestController::SetDisableAnimationTimers(
+    bool disable_timers) {
+  for (LayerAnimator* animator : GetLayerAnimators())
+    animator->set_disable_timer_for_test(disable_timers);
+}
+
+bool MultiLayerAnimatorTestController::HasActiveAnimations() const {
+  for (LayerAnimator* animator : GetLayerAnimators()) {
+    if (animator->is_animating())
+      return true;
+  }
+  return false;
+}
+
+void MultiLayerAnimatorTestController::CompleteAnimations() {
+  while (HasActiveAnimations()) {
+    // StepAnimations() will only progress the current running animations. Thus
+    // each queued animation will require at least one 'Step' call and we cannot
+    // just use a large duration here.
+    StepAnimations(base::TimeDelta::FromMilliseconds(20));
+  }
+}
+
+std::vector<LayerAnimator*>
+MultiLayerAnimatorTestController::GetLayerAnimators() {
+  return static_cast<const MultiLayerAnimatorTestController*>(this)
+      ->GetLayerAnimators();
+}
+
+std::vector<LayerAnimator*>
+MultiLayerAnimatorTestController::GetLayerAnimators() const {
+  return delegate_->GetLayerAnimators();
+}
+
+void MultiLayerAnimatorTestController::StepAnimations(
+    const base::TimeDelta& duration) {
+  for (ui::LayerAnimator* animator : GetLayerAnimators()) {
+    LayerAnimatorTestController controller(animator);
+    controller.StartThreadedAnimationsIfNeeded();
+    controller.Step(duration);
+  }
+}
+
+}  // namespace test
+}  // namespace ui