Make it possible to Paint elements into a display list.

sky/engine/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 60 matching lines @@
 #include "sky/engine/core/html/HTMLElement.h"
 #include "sky/engine/core/html/HTMLTemplateElement.h"
 #include "sky/engine/core/html/parser/HTMLDocumentParser.h"
 #include "sky/engine/core/html/parser/HTMLParserIdioms.h"
 #include "sky/engine/core/layout/LayoutCallback.h"
 #include "sky/engine/core/page/ChromeClient.h"
 #include "sky/engine/core/page/FocusController.h"
 #include "sky/engine/core/page/Page.h"
 #include "sky/engine/core/painting/PaintingCallback.h"
 #include "sky/engine/core/painting/PaintingTasks.h"
+#include "sky/engine/core/painting/PictureRecorder.h"
 #include "sky/engine/core/rendering/RenderCustomLayout.h"
 #include "sky/engine/core/rendering/RenderLayer.h"
 #include "sky/engine/core/rendering/RenderView.h"
 #include "sky/engine/platform/EventDispatchForbiddenScope.h"
 #include "sky/engine/tonic/dart_state.h"
 #include "sky/engine/wtf/BitVector.h"
 #include "sky/engine/wtf/HashFunctions.h"
 #include "sky/engine/wtf/text/CString.h"
 #include "sky/engine/wtf/text/StringBuilder.h"
 #include "sky/engine/wtf/text/TextPosition.h"
@@ skipping 1587 matching lines @@
     if (idValue.isEmpty())
         return false;
     if (treeScope().scopedStyleResolver().hasSelectorForId(idValue))
         return true;
     // Host rules could also have effects.
     if (ShadowRoot* shadowRoot = this->shadowRoot())
         return shadowRoot->scopedStyleResolver().hasSelectorForId(idValue);
     return false;
 }
 
+void Element::paint(PictureRecorder* recorder)
+{
+    if (!renderer() || !renderer()->isBox())
+        return;
+    RenderBox* box = toRenderBox(renderer());
+    GraphicsContext context(recorder->skCanvas());
+
+    // Very simplified painting to allow painting an arbitrary (layer-less) subtree.
+    Vector<RenderBox*> layers;
+    PaintInfo paintInfo(&context, box->absoluteBoundingBoxRect(), box);
+    box->paint(paintInfo, LayoutPoint(), layers);
+    // Note we're ignoring any layers encountered.
+}
+
 } // namespace blink