Support compositing for active animations in SPv2.

third_party/WebKit/Source/core/animation/CompositorAnimationsTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 23 matching lines @@
 #include "core/animation/AnimationTimeline.h"
 #include "core/animation/CompositorPendingAnimations.h"
 #include "core/animation/ElementAnimations.h"
 #include "core/animation/KeyframeEffect.h"
 #include "core/animation/animatable/AnimatableDouble.h"
 #include "core/animation/animatable/AnimatableFilterOperations.h"
 #include "core/animation/animatable/AnimatableTransform.h"
 #include "core/animation/animatable/AnimatableValueTestHelper.h"
 #include "core/dom/Document.h"
 #include "core/layout/LayoutObject.h"
+#include "core/paint/ObjectPaintProperties.h"
 #include "core/style/FilterOperations.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/animation/CompositorAnimation.h"
 #include "platform/animation/CompositorFloatAnimationCurve.h"
 #include "platform/animation/CompositorFloatKeyframe.h"
 #include "platform/geometry/FloatBox.h"
 #include "platform/geometry/IntSize.h"
+#include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h"
 #include "platform/transforms/TransformOperations.h"
 #include "platform/transforms/TranslateTransformOperation.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/HashFunctions.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/PtrUtil.h"
 #include "wtf/RefPtr.h"
 #include <memory>
 
 namespace blink {
@@ skipping 1184 matching lines @@
   EXPECT_EQ(2U, element->elementAnimations()->animations().size());
   simulateFrame(1.);
 
   element->setLayoutObject(nullptr);
   LayoutObjectProxy::dispose(layoutObject);
 
   ThreadState::current()->collectAllGarbage();
   EXPECT_TRUE(element->elementAnimations()->animations().isEmpty());
 }
 
+TEST_F(AnimationCompositorAnimationsTest,
+       canStartAnimationOnCompositorTransformSPv2) {
+  Persistent<Element> element = m_document->createElement("shared");
+  LayoutObjectProxy* layoutObject = LayoutObjectProxy::create(element.get());
+  element->setLayoutObject(layoutObject);
+
+  ScopedSlimmingPaintV2ForTest enableSPv2(true);
+  auto& properties =
+      layoutObject->getMutableForPainting().ensurePaintProperties();
+
+  // Add a transform with a compositing reason, which should allow starting
+  // animation.
+  properties.updateTransform(TransformPaintPropertyNode::root(),
+                             TransformationMatrix(), FloatPoint3D(), false, 0,
+                             CompositingReasonActiveAnimation);
+  EXPECT_TRUE(CompositorAnimations::canStartAnimationOnCompositor(*element));
+
+  // Setting to CompositingReasonNone should produce false.
+  properties.updateTransform(TransformPaintPropertyNode::root(),
+                             TransformationMatrix(), FloatPoint3D(), false, 0,
+                             CompositingReasonNone);
+  EXPECT_FALSE(CompositorAnimations::canStartAnimationOnCompositor(*element));
+
+  // Clearing the transform node entirely should also produce false.
+  properties.clearTransform();
+  EXPECT_FALSE(CompositorAnimations::canStartAnimationOnCompositor(*element));
+
+  element->setLayoutObject(nullptr);
+  LayoutObjectProxy::dispose(layoutObject);
+}
+
 }  // namespace blink