[SPv2] Fix PaintArtifactCompositor clip layer origin undo order

third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp

Index: third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
index 01949ce46567fbd3c40c58953aa1608dae4695c0..ca7d534e01fc72e731115400cc7867721c288afc 100644
--- a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
+++ b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
@@ -181,7 +181,7 @@ scoped_refptr<cc::Layer> createClipLayer(const ClipPaintPropertyNode* node)
         FloatPoint offsetDueToParentClipOffset = node->parent()->clipRect().rect().location();
         gfx::Transform undoClipOffset;
         undoClipOffset.Translate(-offsetDueToParentClipOffset.x(), -offsetDueToParentClipOffset.y());
-        transform.PreconcatTransform(undoClipOffset);
+        transform.ConcatTransform(undoClipOffset);
     }
 
     scoped_refptr<cc::Layer> layer = cc::Layer::Create();
@@ -302,7 +302,7 @@ scoped_refptr<cc::Layer> PaintArtifactCompositor::layerForPaintChunk(const Paint
         FloatPoint offsetDueToClipOffset = clip->clipRect().rect().location();
         gfx::Transform undoClipOffset;
         undoClipOffset.Translate(-offsetDueToClipOffset.x(), -offsetDueToClipOffset.y());
-        transform.PreconcatTransform(undoClipOffset);
+        transform.ConcatTransform(undoClipOffset);
     }
 
     scoped_refptr<cc::PictureLayer> layer = cc::PictureLayer::Create(contentLayerClient.get());