WIP: Skeleton for paint offset caching

Source/core/paint/EmbeddedObjectPainter.cpp

Index: Source/core/paint/EmbeddedObjectPainter.cpp
diff --git a/Source/core/paint/EmbeddedObjectPainter.cpp b/Source/core/paint/EmbeddedObjectPainter.cpp
index 8dd5c5bc11ca175a8a1fe3f24088692756a54064..6b1bb18d5bd72685bcd52fa484e53e25f47c6ae3 100644
--- a/Source/core/paint/EmbeddedObjectPainter.cpp
+++ b/Source/core/paint/EmbeddedObjectPainter.cpp
@@ -44,12 +44,12 @@ void EmbeddedObjectPainter::paintReplaced(const PaintInfo& paintInfo, const Layo
         return;
 
     GraphicsContext* context = paintInfo.context;
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*context, m_layoutEmbeddedObject, paintInfo.phase))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*context, m_layoutEmbeddedObject, paintInfo.phase, paintOffset))
         return;
 
     FloatRect contentRect = m_layoutEmbeddedObject.contentBoxRect();
     contentRect.moveBy(roundedIntPoint(paintOffset));
-    LayoutObjectDrawingRecorder drawingRecorder(*context, m_layoutEmbeddedObject, paintInfo.phase, contentRect);
+    LayoutObjectDrawingRecorder drawingRecorder(*context, m_layoutEmbeddedObject, paintInfo.phase, contentRect, paintOffset);
     GraphicsContextStateSaver stateSaver(*context);
     context->clip(contentRect);