Move the remaining rendering/svg/RenderSVG* files to layout.

Source/core/layout/Layer.cpp

Index: Source/core/layout/Layer.cpp
diff --git a/Source/core/layout/Layer.cpp b/Source/core/layout/Layer.cpp
index 1563ec1ca823133cc920c85af948026733e2642a..5a7c6e92513cb315596eb52b9da2a8b2ba53dc5d 100644
--- a/Source/core/layout/Layer.cpp
+++ b/Source/core/layout/Layer.cpp
@@ -64,6 +64,7 @@
 #include "core/layout/LayoutTreeAsText.h"
 #include "core/layout/compositing/CompositedLayerMapping.h"
 #include "core/layout/compositing/LayerCompositor.h"
+#include "core/layout/svg/LayoutSVGRoot.h"
 #include "core/layout/svg/ReferenceFilterBuilder.h"
 #include "core/page/Page.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
@@ -72,7 +73,6 @@
 #include "core/rendering/RenderScrollbar.h"
 #include "core/rendering/RenderScrollbarPart.h"
 #include "core/rendering/RenderView.h"
-#include "core/rendering/svg/RenderSVGRoot.h"
 #include "platform/LengthFunctions.h"
 #include "platform/Partitions.h"
 #include "platform/RuntimeEnabledFeatures.h"
@@ -1070,7 +1070,7 @@ bool Layer::hasNonIsolatedDescendantWithBlendMode() const
     if (descendantDependentCompositingInputs().hasNonIsolatedDescendantWithBlendMode)
         return true;
     if (renderer()->isSVGRoot())
-        return toRenderSVGRoot(renderer())->hasNonIsolatedBlendingDescendants();
+        return toLayoutSVGRoot(renderer())->hasNonIsolatedBlendingDescendants();
     return false;
 }