Put SVGResourceContainer subtypes into their own property trees.

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

 // Copyright 2016 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/PaintInvalidator.h"
 
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
@@ skipping 443 matching lines @@
   updateVisualRect(object, context);
 
   if (!objectShouldCheckForPaintInvalidation &&
       context.forcedSubtreeInvalidationFlags ==
           PaintInvalidatorContext::ForcedSubtreeInvalidationRectUpdate) {
     // We are done updating the visual rect. No other paint invalidation work to
     // do for this object.
     return;
   }
 
+  if (object.isSVGHiddenContainer()) {
+    context.forcedSubtreeInvalidationFlags |=
+        PaintInvalidatorContext::ForcedSubtreeNoRasterInvalidation;
+  }
+
   PaintInvalidationReason reason = object.invalidatePaintIfNeeded(context);
   switch (reason) {
     case PaintInvalidationDelayedFull:
       m_pendingDelayedPaintInvalidations.push_back(&object);
       break;
     case PaintInvalidationSubtree:
       context.forcedSubtreeInvalidationFlags |=
           (PaintInvalidatorContext::ForcedSubtreeFullInvalidation |
            PaintInvalidatorContext::
                ForcedSubtreeFullInvalidationForStackedContents);
@@ skipping 17 matching lines @@
   }
 }
 
 void PaintInvalidator::processPendingDelayedPaintInvalidations() {
   for (auto target : m_pendingDelayedPaintInvalidations)
     target->getMutableForPainting().setShouldDoFullPaintInvalidation(
         PaintInvalidationDelayedFull);
 }
 
 }  // namespace blink