Paint invalidation tests for slimming paint v2

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 1956 matching lines @@
     ASSERT(document);
     if (!document->view()) {
         exceptionState.throwDOMException(InvalidAccessError, "The document provided is invalid.");
         return;
     }
 
     if (LayoutView *layoutView = document->layoutView())
         layoutView->invalidatePaintForViewAndCompositedLayers();
 }
 
+void Internals::startTrackingPaintInvalidationObjects()
+{
+    ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
+    toLocalFrame(frame()->page()->mainFrame())->view()->layoutView()->layer()->graphicsLayerBacking()->displayItemList()->startTrackingPaintInvalidationObjects();
+}
+
+void Internals::stopTrackingPaintInvalidationObjects()
+{
+    ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
+    toLocalFrame(frame()->page()->mainFrame())->view()->layoutView()->layer()->graphicsLayerBacking()->displayItemList()->stopTrackingPaintInvalidationObjects();
+}
+
+Vector<String> Internals::trackedPaintInvalidationObjects()
+{
+    ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
+    return toLocalFrame(frame()->page()->mainFrame())->view()->layoutView()->layer()->graphicsLayerBacking()->displayItemList()->trackedPaintInvalidationObjects();
+}
+
 ClientRectList* Internals::draggableRegions(Document* document, ExceptionState& exceptionState)
 {
     return annotatedRegions(document, true, exceptionState);
 }
 
 ClientRectList* Internals::nonDraggableRegions(Document* document, ExceptionState& exceptionState)
 {
     return annotatedRegions(document, false, exceptionState);
 }
 
@@ skipping 475 matching lines @@
 
     return animator->setScrollbarsVisibleForTesting(visible);
 }
 
 void Internals::forceRestrictIFramePermissions()
 {
     RuntimeEnabledFeatures::setRestrictIFramePermissionsEnabled(true);
 }
 
 } // namespace blink