Only create PaintChunks at drawing and foreignLayer boundaries

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

Index: third_party/WebKit/Source/core/paint/PaintControllerPaintTest.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.cpp b/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.cpp
index 018acd1953f2bd04365bda3a9bc14e14918f4fe2..648914c8757cac08a3f5652306f00bc19ac8e1aa 100644
--- a/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.cpp
@@ -235,11 +235,7 @@ TEST_P(PaintControllerPaintTestForSlimmingPaintV2, ChunkIdClientCacheFlag) {
   const EffectPaintPropertyNode* effectNode = div.paintProperties()->effect();
   EXPECT_EQ(0.5f, effectNode->opacity());
 
-  // When RLS is enabled, an additional paint chunk will be created for the
-  // LayoutView's layer.
-  unsigned divChunkIndex =
-      RuntimeEnabledFeatures::rootLayerScrollingEnabled() ? 2 : 1;
-  const PaintChunk& chunk = rootPaintController().paintChunks()[divChunkIndex];
+  const PaintChunk& chunk = rootPaintController().paintChunks()[1 /* div */];
   EXPECT_EQ(*div.layer(), chunk.id->client);
   EXPECT_EQ(effectNode, chunk.properties.propertyTreeState.effect());