Create compositor animations for effect animations in SPv2.

third_party/WebKit/Source/core/layout/compositing/CompositingReasonFinderTest.cpp

 // 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 "core/layout/compositing/CompositingReasonFinder.h"
 
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/paint/PaintLayer.h"
@@ skipping 193 matching lines @@
   EXPECT_FALSE(
       CompositingReasonFinder::requiresCompositingForTransformAnimation(
           *style));
 
   style->setHasCurrentTransformAnimation(true);
   style->setIsRunningTransformAnimationOnCompositor(true);
   EXPECT_TRUE(CompositingReasonFinder::requiresCompositingForTransformAnimation(
       *style));
 }
 
+TEST_F(CompositingReasonFinderTest, RequiresCompositingForEffectAnimation) {
+  RefPtr<ComputedStyle> style = ComputedStyle::create();
+
+  style->setSubtreeWillChangeContents(false);
+
+  // In the interest of brevity, for each side of subtreeWillChangeContents()
+  // code path we only check that any one of the effect related animation flags
+  // being set produces true, rather than every permutation.
+
+  style->setHasCurrentOpacityAnimation(false);
+  style->setHasCurrentFilterAnimation(false);
+  style->setHasCurrentBackdropFilterAnimation(false);
+  EXPECT_FALSE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  style->setHasCurrentOpacityAnimation(true);
+  style->setHasCurrentFilterAnimation(false);
+  style->setHasCurrentBackdropFilterAnimation(false);
+  EXPECT_TRUE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  style->setHasCurrentOpacityAnimation(false);
+  style->setHasCurrentFilterAnimation(true);
+  style->setHasCurrentBackdropFilterAnimation(false);
+  EXPECT_TRUE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  style->setHasCurrentOpacityAnimation(false);
+  style->setHasCurrentFilterAnimation(false);
+  style->setHasCurrentBackdropFilterAnimation(true);
+  EXPECT_TRUE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  // Check the other side of subtreeWillChangeContents.
+  style->setSubtreeWillChangeContents(true);
+  style->setHasCurrentOpacityAnimation(false);
+  style->setHasCurrentFilterAnimation(false);
+  style->setHasCurrentBackdropFilterAnimation(false);
+  EXPECT_FALSE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  style->setIsRunningOpacityAnimationOnCompositor(true);
+  style->setIsRunningFilterAnimationOnCompositor(false);
+  style->setIsRunningBackdropFilterAnimationOnCompositor(false);
+  EXPECT_TRUE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  style->setIsRunningOpacityAnimationOnCompositor(false);
+  style->setIsRunningFilterAnimationOnCompositor(true);
+  style->setIsRunningBackdropFilterAnimationOnCompositor(false);
+  EXPECT_TRUE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+
+  style->setIsRunningOpacityAnimationOnCompositor(false);
+  style->setIsRunningFilterAnimationOnCompositor(false);
+  style->setIsRunningBackdropFilterAnimationOnCompositor(true);
+  EXPECT_TRUE(
+      CompositingReasonFinder::requiresCompositingForEffectAnimation(*style));
+}
+
 }  // namespace blink