(WIP) Invalidation during painting (for synchronized painting)

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

 // Copyright 2014 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/SVGImagePainter.h"
 
 #include "core/layout/ImageQualityController.h"
 #include "core/layout/LayoutImageResource.h"
 #include "core/layout/svg/LayoutSVGImage.h"
 #include "core/layout/svg/SVGLayoutSupport.h"
@@ skipping 17 matching lines @@
 
     FloatRect boundingBox = m_layoutSVGImage.paintInvalidationRectInLocalCoordinates();
     if (!paintInfo.cullRect().intersectsCullRect(m_layoutSVGImage.localToParentTransform(), boundingBox))
         return;
 
     PaintInfo paintInfoBeforeFiltering(paintInfo);
     // Images cannot have children so do not call updateCullRect.
     TransformRecorder transformRecorder(paintInfoBeforeFiltering.context, m_layoutSVGImage, m_layoutSVGImage.localToParentTransform());
     {
         SVGPaintContext paintContext(m_layoutSVGImage, paintInfoBeforeFiltering);
-        if (paintContext.applyClipMaskAndFilterIfNecessary() && !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintContext.paintInfo().context, m_layoutSVGImage, paintContext.paintInfo().phase, LayoutPoint())) {
-            LayoutObjectDrawingRecorder recorder(paintContext.paintInfo().context, m_layoutSVGImage, paintContext.paintInfo().phase, boundingBox, LayoutPoint());
+        if (paintContext.applyClipMaskAndFilterIfNecessary() && !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintContext.paintInfo().context, m_layoutSVGImage, paintContext.paintInfo().phase)) {
+            LayoutObjectDrawingRecorder recorder(paintContext.paintInfo().context, m_layoutSVGImage, paintContext.paintInfo().phase, boundingBox);
             paintForeground(paintContext.paintInfo());
         }
     }
 
     if (m_layoutSVGImage.style()->outlineWidth()) {
         PaintInfo outlinePaintInfo(paintInfoBeforeFiltering);
         outlinePaintInfo.phase = PaintPhaseSelfOutlineOnly;
         ObjectPainter(m_layoutSVGImage).paintOutline(outlinePaintInfo, LayoutPoint(boundingBox.location()));
     }
 }
@@ skipping 34 matching lines @@
     // scaling. This can be achieved by setting the image's container size to
     // its viewport size (i.e. if a viewBox is available - use that - else use intrinsic size.)
     // See: http://www.w3.org/TR/SVG/single-page.html, 7.8 The 'preserveAspectRatio' attribute.
     FloatSize intrinsicSize;
     FloatSize intrinsicRatio;
     cachedImage->computeIntrinsicDimensions(intrinsicSize, intrinsicRatio);
     return intrinsicRatio;
 }
 
 } // namespace blink