Put SVGResourceContainer subtypes into their own property trees.

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

Index: third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.cpp
diff --git a/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.cpp b/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.cpp
index 256b397caaf59cb537cd978413d18291e05fb323..e786211bc8f7fb43b959dd131c6b0df3d676c34a 100644
--- a/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.cpp
+++ b/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.cpp
@@ -492,6 +492,10 @@ void ObjectPaintInvalidatorWithContext::invalidatePaintRectangleWithContext(
   if (rect.isEmpty())
     return;
 
+  if (m_context.forcedSubtreeInvalidationFlags &
+      PaintInvalidatorContext::ForcedSubtreeNoRasterInvalidation)
+    return;
+
   // If the parent has fully invalidated and its visual rect covers this object
   // on the same backing, skip the invalidation.
   if (parentFullyInvalidatedOnSameBacking() &&