Add |GraphicsLayerDebugInfo::getAnnotatedInvalidationRects|

Source/core/rendering/RenderLayerScrollableArea.cpp

Index: Source/core/rendering/RenderLayerScrollableArea.cpp
diff --git a/Source/core/rendering/RenderLayerScrollableArea.cpp b/Source/core/rendering/RenderLayerScrollableArea.cpp
index d1caf1c5b142e0f294191bb5b73165c4550aae8f..95471d93f968ce2b27424d6370cdbf2448dd9e86 100644
--- a/Source/core/rendering/RenderLayerScrollableArea.cpp
+++ b/Source/core/rendering/RenderLayerScrollableArea.cpp
@@ -186,12 +186,12 @@ void RenderLayerScrollableArea::invalidateScrollbarRect(Scrollbar* scrollbar, co
 
     if (scrollbar == m_vBar.get()) {
         if (GraphicsLayer* layer = layerForVerticalScrollbar()) {
-            layer->setNeedsDisplayInRect(rect);
+            layer->setNeedsDisplayInRect(rect, WebInvalidationDebugAnnotationsScrollbar);
             return;
         }
     } else {
         if (GraphicsLayer* layer = layerForHorizontalScrollbar()) {
-            layer->setNeedsDisplayInRect(rect);
+            layer->setNeedsDisplayInRect(rect, WebInvalidationDebugAnnotationsScrollbar);
             return;
         }
     }
@@ -223,7 +223,7 @@ void RenderLayerScrollableArea::invalidateScrollbarRect(Scrollbar* scrollbar, co
 void RenderLayerScrollableArea::invalidateScrollCornerRect(const IntRect& rect)
 {
     if (GraphicsLayer* layer = layerForScrollCorner()) {
-        layer->setNeedsDisplayInRect(rect);
+        layer->setNeedsDisplayInRect(rect, WebInvalidationDebugAnnotationsScrollbar);
         return;
     }