Paint invalidation tests for slimming paint v2

Source/core/testing/Internals.h

 /*
  * 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 264 matching lines @@
     DictionaryTest* dictionaryTest() const;
     UnionTypesTest* unionTypesTest() const;
 
     Vector<String> getReferencedFilePaths() const;
 
     void startTrackingRepaints(Document*, ExceptionState&);
     void stopTrackingRepaints(Document*, ExceptionState&);
     void updateLayoutIgnorePendingStylesheetsAndRunPostLayoutTasks(Node*, ExceptionState&);
     void forceFullRepaint(Document*, ExceptionState&);
 
+    void startTrackingPaintInvalidationObjects();
+    void stopTrackingPaintInvalidationObjects();
+    Vector<String> trackedPaintInvalidationObjects();
+
     ClientRectList* draggableRegions(Document*, ExceptionState&);
     ClientRectList* nonDraggableRegions(Document*, ExceptionState&);
 
     PassRefPtr<DOMArrayBuffer> serializeObject(PassRefPtr<SerializedScriptValue>) const;
     PassRefPtr<SerializedScriptValue> deserializeBuffer(PassRefPtr<DOMArrayBuffer>) const;
 
     String getCurrentCursorInfo();
 
     bool cursorUpdatePending() const;
 
@@ skipping 84 matching lines @@
 
     DocumentMarker* markerAt(Node*, const String& markerType, unsigned index, ExceptionState&);
     Member<InternalRuntimeFlags> m_runtimeFlags;
 
     IterationSource* startIteration(ScriptState*, ExceptionState&) override;
 };
 
 } // namespace blink
 
 #endif // Internals_h