Paint invisible layer content in presence of composited animations.

third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp

 // Copyright 2015 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/paint/PaintPropertyTreeBuilderTest.h"
 
 #include "core/html/HTMLIFrameElement.h"
 #include "core/layout/LayoutTreeAsText.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintPropertyTreePrinter.h"
@@ skipping 3100 matching lines @@
   EXPECT_EQ(CompositorElementId(), properties->effect()->compositorElementId());
 }
 
 TEST_P(PaintPropertyTreeBuilderTest,
        TransformNodeAnimatedHasCompositorElementId) {
   loadTestData("transform-animation.html");
   const ObjectPaintProperties* properties = paintPropertiesForElement("target");
   EXPECT_TRUE(properties->transform());
   EXPECT_NE(CompositorElementId(),
             properties->transform()->compositorElementId());
+  EXPECT_TRUE(properties->transform()->requiresCompositingForAnimation());
 }
 
 TEST_P(PaintPropertyTreeBuilderTest, EffectNodeAnimatedHasCompositorElementId) {
   loadTestData("opacity-animation.html");
   const ObjectPaintProperties* properties = paintPropertiesForElement("target");
   EXPECT_TRUE(properties->effect());
   EXPECT_NE(CompositorElementId(), properties->effect()->compositorElementId());
+  EXPECT_TRUE(properties->effect()->requiresCompositingForAnimation());
 }
 
 TEST_P(PaintPropertyTreeBuilderTest, FloatUnderInline) {
   setBodyInnerHTML(
       "<div style='position: absolute; top: 55px; left: 66px'>"
       "  <span id='span'"
       "      style='position: relative; top: 100px; left: 200px; opacity: 0.5'>"
       "    <div id='target' style='float: left; width: 33px; height: 44px'>"
       "    </div>"
       "  </span"
@@ skipping 17 matching lines @@
       "<div id='target' style='overflow: auto; width: 100px; height: 100px'>"
       "  <div style='width: 200px; height: 200px'></div>"
       "</div>");
 
   const ObjectPaintProperties* properties = paintPropertiesForElement("target");
   EXPECT_NE(CompositorElementId(),
             properties->scrollTranslation()->compositorElementId());
 }
 
 }  // namespace blink