(WIP) Invalidation during painting (for synchronized painting)

third_party/WebKit/Source/core/paint/ObjectPainter.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/ObjectPainter.h"
 
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTheme.h"
@@ skipping 185 matching lines @@
 
     // Only paint the focus ring by hand if the theme isn't able to draw the focus ring.
     if (styleToUse.outlineStyleIsAuto() && !LayoutTheme::theme().shouldDrawDefaultFocusRing(m_layoutObject))
         return;
 
     Vector<LayoutRect> outlineRects;
     m_layoutObject.addOutlineRects(outlineRects, paintOffset, m_layoutObject.outlineRectsShouldIncludeBlockVisualOverflow());
     if (outlineRects.isEmpty())
         return;
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutObject, paintInfo.phase, paintOffset))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutObject, paintInfo.phase))
         return;
 
     // The result rects are in coordinates of m_layoutObject's border box.
     // Block flipping is not applied yet if !m_layoutObject.isBox().
     if (!m_layoutObject.isBox() && m_layoutObject.styleRef().isFlippedBlocksWritingMode()) {
         LayoutBlock* container = m_layoutObject.containingBlock();
         if (container) {
             m_layoutObject.localToAncestorRects(outlineRects, container, -paintOffset, paintOffset);
             if (outlineRects.isEmpty())
                 return;
         }
     }
 
     Vector<IntRect> pixelSnappedOutlineRects;
     for (auto& r : outlineRects)
         pixelSnappedOutlineRects.append(pixelSnappedIntRect(r));
 
     IntRect unitedOutlineRect = unionRectEvenIfEmpty(pixelSnappedOutlineRects);
     IntRect bounds = unitedOutlineRect;
     bounds.inflate(m_layoutObject.styleRef().outlineOutsetExtent());
-    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutObject, paintInfo.phase, bounds, paintOffset);
+    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutObject, paintInfo.phase, bounds);
 
     Color color = m_layoutObject.resolveColor(styleToUse, CSSPropertyOutlineColor);
     if (styleToUse.outlineStyleIsAuto()) {
         paintInfo.context.drawFocusRing(pixelSnappedOutlineRects, styleToUse.outlineWidth(), styleToUse.outlineOffset(), color);
         return;
     }
 
     if (unitedOutlineRect == pixelSnappedOutlineRects[0]) {
         paintSingleRectangleOutline(paintInfo, unitedOutlineRect, styleToUse, color);
         return;
@@ skipping 21 matching lines @@
     KURL url = toElement(m_layoutObject.node())->hrefURL();
     if (!url.isValid())
         return;
 
     Vector<LayoutRect> visualOverflowRects;
     m_layoutObject.addElementVisualOverflowRects(visualOverflowRects, paintOffset);
     IntRect rect = pixelSnappedIntRect(unionRect(visualOverflowRects));
     if (rect.isEmpty())
         return;
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutObject, DisplayItem::PrintedContentPDFURLRect, paintOffset))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutObject, DisplayItem::PrintedContentPDFURLRect))
         return;
 
-    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutObject, DisplayItem::PrintedContentPDFURLRect, rect, paintOffset);
+    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutObject, DisplayItem::PrintedContentPDFURLRect, rect);
     if (url.hasFragmentIdentifier() && equalIgnoringFragmentIdentifier(url, m_layoutObject.document().baseURL())) {
         String fragmentName = url.fragmentIdentifier();
         if (m_layoutObject.document().findAnchor(fragmentName))
             paintInfo.context.setURLFragmentForRect(fragmentName, rect);
         return;
     }
     paintInfo.context.setURLForRect(url, rect);
 }
 
 void ObjectPainter::drawLineForBoxSide(GraphicsContext& graphicsContext, int x1, int y1, int x2, int y2,
@@ skipping 266 matching lines @@
     m_layoutObject.paint(info, paintOffset);
     info.phase = PaintPhaseFloat;
     m_layoutObject.paint(info, paintOffset);
     info.phase = PaintPhaseForeground;
     m_layoutObject.paint(info, paintOffset);
     info.phase = PaintPhaseOutline;
     m_layoutObject.paint(info, paintOffset);
 }
 
 } // namespace blink